Examine individual changes

[ 0 => '{{Short description|US–USSR spaceflight capability rivalry}}', 1 => '{{About|the Cold War rivalry between the United States and the Soviet Union|various space races|List of space races|other uses of the term|Space Race (disambiguation)}}', 2 => '{{For timeline|Timeline of the Space Race}}', 3 => '{{Use mdy dates|date=January 2020}}', 4 => '{{Use American English|date=March 2016}}', 5 => '{{multiple image|perrow = 2|total_width=300', 6 => '| image1 = Sputnik asm.jpg', 7 => '| width1 = ', 8 => '| image2 = Aldrin Apollo 11 original.jpg', 9 => '| width2 = ', 10 => '| image3 = Portrait of ASTP crews - restoration.jpg', 11 => '| width3 = ', 12 => '| image4 = Atlantis docked to MIR - GPN-2000-001315.jpg', 13 => '| width4 = ', 14 => '| footer = Clockwise, from top left: Model of the [[Sputnik 1]] satellite; [[Apollo 11]] astronaut [[Buzz Aldrin]] on the Moon; US [[Space Shuttle]] ''[[Space Shuttle Atlantis|Atlantis]]'' docked to the Soviet ''[[Mir]]'' Earth orbital space station; US and Soviet crews of [[Apollo-Soyuz Test Project]], first joint [[space rendezvous|rendezvous and docking]] mission', 15 => '}}', 16 => '{{Spaceflight sidebar}}', 17 => '', 18 => 'The '''Space Race''' was a 20th-century competition between two [[Cold War]] rivals, the [[United States]] and the [[Soviet Union]], to achieve superior [[spaceflight]] capability. It had its origins in the [[ballistic missile]]-based [[nuclear arms race]] between the two nations following [[World War&nbsp;II]]. The technological advantage demonstrated by spaceflight achievement was seen as necessary for [[national security]] and became part of the symbolism and ideology of the time. The Space Race brought pioneering launches of [[artificial satellite]]s, robotic [[space probe]]s to the [[Moon]], [[Venus]], and [[Mars]], and [[human spaceflight]] in [[low Earth orbit]] and ultimately to the Moon.<ref>{{cite web|url=https://www.history.com/topics/cold-war/space-race |publisher=History.com |title=The Space Race|date=February 21, 2020|access-date=January 8, 2023}}</ref>', 19 => '', 20 => 'Public interest in space travel originated in the 1951 publication of a Soviet youth magazine and was promptly picked up by US magazines.<ref>{{cite web', 21 => ' | url = https://www.gozerog.com/article/nasa-vomit-comet/', 22 => ' | title = How Did NASA'S "Vomit Comet" Get Its Name? A Brief History', 23 => ' | last = ', 24 => ' | first = ', 25 => ' | date = June 30, 2023', 26 => ' | website = gozerog.com ', 27 => ' | publisher = ', 28 => ' | access-date = August 1, 2023', 29 => ' | quote = A Soviet youth magazine in 1951 is often credited with sparking public interest in space travel. Quickly picked up by US magazines, the idea of extending the Cold War playing board to outer space soon energized the imaginations of politicians, military leaders, and the private sector.', 30 => '}}</ref> The competition began on July 30, 1955, when the United States announced its intent to launch artificial [[Satellite|satellites]] for the [[International Geophysical Year]]. Four days later, the Soviet Union responded by declaring they would also launch a satellite "in the near future". The launching of satellites was enabled by developments in ballistic missile capabilities since the end of [[World War II]].{{sfn|Schefter|1999|pp=3–5}} The competition gained Western public attention with the "[[Sputnik crisis]]", when the USSR achieved the first successful satellite launch, [[Sputnik 1]], on October 4, 1957. It gained momentum when the USSR sent the first human, [[Yuri Gagarin]], into space with the orbital flight of [[Vostok 1]] on April 12, 1961. These were followed by a string of other early firsts achieved by the Soviets over the next few years.{{sfn|Siddiqi|2003a|p=460}}', 31 => '', 32 => 'Gagarin's flight led US president [[John F. Kennedy]] to raise the stakes on May 25, 1961, by asking the US Congress to commit to the goal of "landing a man on the Moon and returning him safely to the Earth" before the end of the decade.<ref name="Special Message"/> Both countries began developing [[super heavy-lift launch vehicle]]s, with the US successfully deploying the [[Saturn V]], which was large enough to send a three-person orbiter and two-person lander to the Moon. Kennedy's Moon landing goal was achieved in July 1969, with the flight of [[Apollo 11]],<ref>{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1969-059A|title=Apollo 11 Command and Service Module (CSM)|website=NASA Space Science Data Coordinated Archive|access-date=November 20, 2019}}</ref><ref>{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1969-059C|title=Apollo 11 Lunar Module / EASEP|website=NASA Space Science Data Coordinated Archive|access-date=November 20, 2019}}</ref><ref name="orbit">{{cite web |url=https://airandspace.si.edu/explore-and-learn/topics/apollo/apollo-program/landing-missions/apollo11.cfm |title=Apollo 11 Mission Summary |website=Smithsonian Air and Space Museum}}</ref> a remarkable achievement that many Americans believed overshadowed all Soviet achievements. However, such an opinion is generally contentious globally, with others attributing the first man in space as being a larger achievement.<ref>{{cite web |last1=Frost |first1=Jennifer |title=Who really won the US-Soviet space race? |url=https://www.auckland.ac.nz/en/news/2019/07/19/who-really-won-space-race.html |website=The University of Auckland |access-date=17 February 2022}}</ref><ref name="NatSecEncyclopedia"/> The USSR pursued two [[Soviet crewed lunar programs|crewed lunar programs]] but did not succeed with its [[N1 (rocket)|N1 rocket]] to launch and land on the Moon before the US and eventually canceled it to concentrate on [[Salyut program|Salyut]], the first [[space station]] program, and the first landings [[Venera 8|on Venus]] and [[Mars 3|on Mars]]. Meanwhile, the US landed five more Apollo crews on the Moon<ref>{{cite web |url=http://nssdc.gsfc.nasa.gov/planetary/lunar/lunar_sites.html |title=Apollo Landing Site Coordinates |publisher=NASA|work=NASA Space Science Data Coordinated Archive |first=David R. |last=Williams |date=December 11, 2003 |access-date=September 7, 2013}}</ref> and continued [[List of landings on extraterrestrial bodies|exploration of other extraterrestrial bodies]] robotically.', 33 => '', 34 => 'A period of [[détente]] followed with the April 1972 agreement on a cooperative [[Apollo–Soyuz Test Project]] (ASTP), resulting in the July 1975 rendezvous in Earth orbit of a US astronaut crew with a Soviet cosmonaut crew and joint development of an international docking standard [[APAS-75]]. Being considered as the final act of the Space Race,<ref name="NatSecEncyclopedia">Both the Apollo 11 Moon landing and the ASTP have been identified as the end of the Space Race,{{cite book |url=https://books.google.com/books?id=K751AwAAQBAJ&pg=PT747|title=Encyclopedia of United States National Security |isbn=978-0-7619-2927-7 |publisher=[[SAGE Publications]] |editor-first=Richard J. |editor-last=Samuels |editor-link=Richard J. Samuels |edition=1st |year=2005 |page=669 |quote=Most observers felt that the U.S. moon landing ended the space race with a decisive American victory. […] The formal end of the space race occurred with the 1975 joint Apollo-Soyuz mission, in which U.S. and Soviet spacecraft docked, or joined, in orbit while their crews visited one another's craft and performed joint scientific experiments.}}</ref> the competition was only gradually replaced with cooperation.<ref name = technology>{{cite report|url= https://www.princeton.edu/~ota/disk2/1985/8533/8533.PDF |pages=80–81 |publisher=US Congress, Office of Technology Assessment|title=U.S.-Soviet Cooperation in Space |date=July 1985 |access-date=June 13, 2018}}</ref> The [[collapse of the Soviet Union]] eventually allowed the US and the newly founded [[Russian Federation]] to end their Cold War competition also in space, by agreeing in 1993 on the [[Shuttle-Mir program|Shuttle–''Mir'']] and [[International Space Station program]]s.<ref name="Mir deorbited">', 35 => '{{cite news', 36 => ' |last1=Boyle', 37 => ' |first1=Alan', 38 => ' |title=Russia bids farewell to Mir', 39 => ' |work=NBC News', 40 => ' |date=March 23, 2001', 41 => ' |url=http://www.nbcnews.com/id/3077781/ns/technology_and_science-space/t/russia-bids-farewell-mir/#.VXyY2BNVhHw', 42 => ' |access-date=June 13, 2015', 43 => ' |location=New York', 44 => ' |archive-url=https://web.archive.org/web/20150615065153/http://www.nbcnews.com/id/3077781/ns/technology_and_science-space/t/russia-bids-farewell-mir/', 45 => ' |archive-date=June 15, 2015', 46 => ' |url-status=live', 47 => '}}', 48 => '</ref><ref name="ISS facts & figures">', 49 => '{{cite web', 50 => ' |last1=Garcia', 51 => ' |first1=Mark', 52 => ' |title=ISS Facts and Figures', 53 => ' |publisher=NASA', 54 => ' |work=International Space Station', 55 => ' |date=April 30, 2015', 56 => ' |url=http://www.nasa.gov/mission_pages/station/main/onthestation/facts_and_figures.html', 57 => ' |access-date=June 13, 2015', 58 => ' |archive-url=https://web.archive.org/web/20150603040411/http://www.nasa.gov/mission_pages/station/main/onthestation/facts_and_figures.html', 59 => ' |archive-date=June 3, 2015', 60 => ' |url-status=live', 61 => '}}', 62 => '</ref>', 63 => '', 64 => '==Origins==', 65 => 'Although Germans, Americans and Soviets experimented with small liquid-fuel rockets before [[World War&nbsp;II]], launching satellites and humans into space required the development of larger [[ballistic missiles]] such as [[Wernher von Braun]]'s [[Aggregat (rocket family)|Aggregat-4 (A-4)]], which became known as the [[Vergeltungswaffe 2]] (V-2) developed by [[Nazi Germany]] to bomb the Allies in the war.<ref>{{cite book|title=The Rocket and the Reich: Peenemünde and the Coming of the Ballistic Missile Era|url=https://archive.org/details/isbn_9780029228951|url-access=registration|last=Neufeld|first=Michael J|publisher=The Free Press|year=1995|location=New York|pages=[https://archive.org/details/isbn_9780029228951/page/158 158], 160–62, 190|isbn=9780029228951}}</ref> After the war, both the US and USSR acquired custody of German rocket development assets which they used to leverage the development of their own missiles.', 66 => '', 67 => '[[File:Von Braun 1952 Space Station Concept 9132079 original.jpg|thumb|left|Wernher von Braun's space station concept (1952)]]', 68 => 'Public interest in space flight was first aroused in October 1951 when the Soviet rocketry engineer [[Mikhail Tikhonravov]] published "Flight to the Moon" in the newspaper ''Pionerskaya pravda'' for young readers. He described a two-person interplanetary spaceship of the future and the industrial and technological processes required to create it. He ended the short article with a clear forecast of the future: "We do not have long to wait. We can assume that the bold dream of [[Konstantin Tsiolkovsky]] will be realized within the next 10 to 15 years."{{sfn|Siddiqi|2000|p=89}} From March 1952 to April 1954, the US [[Collier's|Collier's magazine]] reacted with a series of seven articles [[Man Will Conquer Space Soon!]] detailing [[Wernher von Braun]]'s plans for crewed spaceflight. In March 1955, Disneyland's animated episode [[Man in Space]] in the US television with an audience of about 40 million people eventually fired the public enthusiasm for space travel and raised government interest, both in the USA and USSR.', 69 => '', 70 => '===Missile race===', 71 => '{{Main|Intercontinental ballistic missile}}', 72 => '', 73 => 'Soon after the end of World War II, the two former allies became engaged in a state of political conflict and military tension known as the [[Cold War]] (1947–1991), which polarized Europe between the Soviet Union's [[satellite state]]s (often referred to as the [[Eastern Bloc]]) and the states of the [[Western world]] allied with the U.S.{{sfn|Schmitz|1999|pp=149–54}}', 74 => '', 75 => '===Soviet rocket development===', 76 => '{{Further|Soviet rocketry|Soviet space program}}', 77 => '[[File:Roket_Launcher_R-7.svg|thumb|The Soviet stable of Sputnik, Vostok, Voskhod, and Soyuz [[launch vehicle]]s were all derivatives of the [[R-7 (rocket family)|R-7 Semyorka]] [[intercontinental ballistic missile|ICBM]].]]', 78 => 'The first Soviet development of artillery rockets was in 1921 when the Soviet military sanctioned the [[Gas Dynamics Laboratory]], a small research laboratory to explore solid fuel rockets, led by [[Nikolai Tikhomirov (chemical engineer)|Nikolai Tikhomirov]], who had begun studying solid and liquid-fueled rockets in 1894, and obtained a patent in 1915 for "self-propelled aerial and water-surface mines.{{sfn|Siddiqi|2000|p=6}}{{sfn|Chertok|2005|p=164-5 Vol 1}} The first test-firing of a solid fuel rocket was carried out in 1928.{{sfn|Chertok|2005|p=165 Vol 1}}', 79 => '', 80 => 'Further development was carried out in the 1930s by the [[Group for the Study of Reactive Motion]] (GIRD), where Soviet rocket pioneers [[Sergey Korolev]], [[Friedrich Zander]], [[Mikhail Tikhonravov]] and [[Leonid Dushkin]]{{sfn|Siddiqi|2000|p=4-5}} launched [[Group for the Study of Reactive Motion#GIRD-X rocket|GIRD-X]], the first Soviet liquid-fueled rocket in 1933.<ref>{{cite web |title=GIRD (Gruppa Isutcheniya Reaktivnovo Dvisheniya) |url=http://weebau.com/rock_rus/gird.htm |website=WEEBAU |access-date=26 July 2022}}</ref> In 1933 the two [[OKB|design bureaus]] were combined into the [[Reactive Scientific Research Institute]]<ref name="RSW_GDL">{{cite web |last1=Zak |first1=Anatoly |title=Gas Dynamics Laboratory |url=http://www.russianspaceweb.com/gdl.html |access-date=9 June 2022}}</ref> and produced the ', 81 => 'RP-318, the USSR's first [[Korolyov RP-318|rocket-powered aircraft]] and the [[RS-82 (rocket family)|RS-82 and RS-132 missiles]],{{sfn|Chertok|2005|p=167 vol 1}} which became the basis for the [[Katyusha rocket launcher|Katyusha]] [[multiple rocket launcher]],<ref>{{cite web |title=Greatest World War II Weapons : The Fearsome Katyusha Rocket Launcher |url=https://defencyclopedia.com/2016/02/20/greatest-world-war-ii-weapons-the-fearsome-katyusha-rocket-launcher/ |website=Defencyclopidea |date=February 20, 2016 |access-date=20 May 2022}}</ref>{{sfn|Siddiqi|2000|p=9}} During the 1930s Soviet rocket technology was comparable to [[Germany]]'s,{{sfn|Chertok|2005|p=167-8 Vol 1}} but [[Joseph Stalin]]'s [[Great Purge]] from 1936 to 1938 severely damaged its progress.', 82 => '', 83 => 'In 1944 the Soviets became aware of [[Nazi Germany]]'s rocket program from [[Winston Churchill]], which resulted in recovery of V-2 rocket parts from a missile test station in [[Debica]], Poland.{{sfn|Chertok|2005|p=258-9 Vol 1}} In early 1945 a team of Soviet rocket specialists were sent to Germany to identify and recover German rocket technology,{{sfn|Chertok|2005|p=214 Vol 1}} which developed into [[Institute Rabe]], a Soviet missile research group in [[Bleicherode]], Germany that recruited and employed German rocket specialists to aid in current and future Soviet rocket development.{{sfn|Chertok|2005|p=289-300 Vol 1}} In 1946 [[Operation Osoaviakhim]] moved more than 170 of the top German rocket specialists to the Soviet Union.{{sfn|Siddiqi|2003a|p=45}} In 1945 and 1946 [[German influence on the Soviet space program|the use of German expertise]] was invaluable in reducing the time needed to master the intricacies of the V-2 rocket, establishing production of the [[R-1 rocket]] and enable a base for further developments. However, after 1947 the Soviets made very little use of German specialists and their influence on the future Soviet rocket program was marginal.{{sfn|Siddiqi|2000|p=40,63,83-84}}<ref name="Neufield">{{cite journal |last1=Neufeld |first1=Michael |title=The Nazi aerospace exodus: towards a global, transnational history |journal=History and Technology|date=2012 |volume=28 |issue=1 |pages=57–58 |doi=10.1080/07341512.2012.662338 |s2cid=145015252 |url=https://repository.si.edu/bitstream/handle/10088/29799/Neufeld%20Nazi%20Aerospace%20Exodus.pdf?sequence=1&isAllowed=y%7C |access-date=2022-07-03 |archive-date=2022-06-25 |archive-url=https://web.archive.org/web/20220625083228/https://repository.si.edu/bitstream/handle/10088/29799/Neufeld%20Nazi%20Aerospace%20Exodus.pdf?sequence=1&isAllowed=y%7C |url-status=live }}</ref> The Germans were eventually repatriated in 1951-53.{{sfn|Siddiqi|2000|p=82}}', 84 => '', 85 => 'Having suffered at least 27 million casualties during World War II after being invaded by Nazi Germany in 1941,{{sfn|Burrows|1998|pp=149–51}} the Soviet Union was wary of the United States, which until late 1949 was the sole possessor of atomic weapons. Since the Americans had a much larger air force than the Soviet Union, and the United States maintained advance air bases near Soviet territory, in 1947 Stalin ordered the development of [[intercontinental ballistic missile]]s (ICBMs) in order to counter the perceived American threat.{{sfn|Gatland|1976|pp=100–01}} In 1953, Korolev was given the go-ahead to develop the [[R-7 Semyorka]] rocket. It was successfully tested on August 21, 1957, and became the world's first fully operational ICBM the following month.{{sfn|Hall|Shayler|2001|p=56}} It was later used to launch the first satellite into space, and [[R-7 (rocket family)|derivatives]] launched all piloted Soviet spacecraft.{{sfn|Siddiqi|2003a|pp=468–69}}', 86 => '', 87 => '===American rocket development===', 88 => '[[File:Wernher von Braun.jpg|thumb|upright|[[Wernher von Braun]] became the United States' lead rocket engineer during the 1950s and 1960s.]]', 89 => 'Although American rocket pioneer [[Robert H. Goddard]] developed, patented, and flew small liquid-propellant rockets as early as 1914, he became a recluse when his ideas were ridiculed by an editorial in ''[[The New York Times]]''. This left the United States as the only one of the major three World War II powers not to have its own rocket program, until Von Braun and his engineers were expatriated from [[Nazi Germany]] in 1945. The US acquired a large number of V-2 rockets and recruited von Braun and most of his engineering team in [[Operation Paperclip]].{{sfn|Schefter|1999|p=29}} The team was sent to the Army's [[White Sands Missile Range|White Sands Proving Ground]] in New Mexico, in 1945.{{sfn|Burrows|1998|p=123}} They set about assembling the captured V-2s and began a program of launching them and instructing American engineers in their operation.{{sfn|Burrows|1998|pp=129–34}} These tests led to the [[first photos of Earth from space]], and the first two-stage rocket, the [[WAC Corporal]]-[[V-2 sounding rocket|V-2]] combination, in 1949.{{sfn|Burrows|1998|pp=129–34}} The German rocket team was moved from [[Fort Bliss]] to the Army's new [[Redstone Arsenal]], located in [[Huntsville, Alabama]], in 1950.{{sfn|Burrows|1998|p=137}} From here, von Braun and his team developed the Army's first operational medium-range ballistic missile, the [[PGM-11 Redstone|Redstone rocket]], derivatives of which launched both America's first satellite, and the first piloted Mercury space missions.{{sfn|Burrows|1998|p=137}} It became the basis for both the [[Jupiter-C|Jupiter]] and [[Saturn (rocket family)|Saturn family of rockets]].{{sfn|Burrows|1998|p=137}}', 90 => '', 91 => '[[File:Early_US_Rocket_Launchers.jpg|thumb|The US stable of [[Explorer 1]], [[Project Mercury|Mercury]], [[Project Gemini|Gemini]], and [[Apollo program|Apollo]] launch vehicles were a varied group of ICBMs and the NASA-developed [[Saturn IB]] rocket.]]', 92 => 'Each of the United States armed services had its own ICBM development program. The Air Force began ICBM research in 1945 with the [[MX-774]].<ref name="Atlas">{{cite encyclopedia|url=http://www.astronautix.com/a/index.html |archive-url=https://web.archive.org/web/20160710093606/http://www.astronautix.com/a/index.html |url-status=dead |archive-date=July 10, 2016 |title= Atlas |encyclopedia= Encyclopedia Astronautix |last= Wade|first= Mark|access-date=September 28, 2020}}</ref> In 1950, von Braun began testing the Air Force [[PGM-11 Redstone]] rocket family at Cape Canaveral.<ref>{{Cite journal|title = Man on the Moon: The U.S. Space Program as a Cold War Maneuver|jstor = 25162945|journal = OAH Magazine of History|date = January 1, 1994|pages = 42–50|volume = 8|issue = 2|first = Rita G.|last = Koman|doi = 10.1093/maghis/8.2.42}}</ref> By 1957, a descendant of the Air Force MX-774 received top-priority funding.<ref name="Atlas"/> and evolved into the [[SM-65 Atlas|Atlas-A]], the first successful American ICBM.<ref name="Atlas"/> Its upgraded version, the [[SM-65 Atlas|Atlas-D]], later served as a nuclear ICBM and as the orbital launch vehicle for [[Project Mercury]] and the remote-controlled [[Agena Target Vehicle]] used in [[Project Gemini]].<ref name="Atlas"/>', 93 => '', 94 => '==First artificial satellites==', 95 => 'In 1955, with both the United States and the Soviet Union building ballistic missiles that could be used to launch objects into space, the stage was set for nationalistic competition.{{sfn|Schefter|1999|pp=3–5}} On July 29, 1955, [[James C. Hagerty]], President [[Dwight D. Eisenhower]]'s press secretary, announced that the United States intended to launch "small Earth circling satellites" between July 1, 1957, and December 31, 1958, as part of the US contribution to the [[International Geophysical Year]] (IGY).{{sfn|Schefter|1999|pp=3–5}} On August 2, at the [[International Astronautical Federation|Sixth Congress of the International Astronautical Federation]] in Copenhagen, scientist [[Leonid I. Sedov]] told international reporters at the Soviet embassy of his country's intention to launch a satellite as well, in the "near future".{{sfn|Schefter|1999|pp=3–5}}', 96 => '', 97 => '===Soviet planning===', 98 => '{{Further|Soviet space program}}', 99 => 'On August 30, 1955, Korolev managed to get the [[Soviet Academy of Sciences]] to create a commission whose purpose was to beat the Americans into Earth orbit: this was the ''de facto'' start date for the Space Race.{{sfn|Schefter|1999|pp=3–5}} The [[Council of Ministers of the Soviet Union]] began a policy of treating development of its space program as top-secret. When the Sputnik project was first approved, one of the immediate courses of action the [[Politburo]] took was to consider what to announce to the world regarding their event. The [[Telegraph Agency of the Soviet Union]] (TASS) established precedents for all official announcements on the Soviet space program. The information eventually released did not offer details on who built and launched the satellite or why it was launched. However, the public release is illuminating in what it does reveal: "there is an abundance of arcane scientific and technical data... as if to overwhelm the reader with mathematics in the absence of even a picture of the object".<ref name="books.google.com">{{cite book|url=https://books.google.com/books?id=W7oRuOZbb8IC|title=Into the Cosmos: Space Exploration and Soviet Culture|isbn=9780822977469|access-date=2016-01-19|last1=Andrews|first1=James T.|last2=Siddiqi|first2=Asif A.|year=2011|publisher=University of Pittsburgh Pre }}</ref>', 100 => '', 101 => 'The Soviet space program's use of secrecy served as both a tool to prevent the leaking of [[classified information]] between countries, and also to create a mysterious barrier between the space program and the Soviet populace. The program's nature embodied ambiguous messages concerning its goals, successes, and values. The program itself was so secret that a regular Soviet citizen could never achieve a concrete image of it, but rather a superficial picture of its history, present activities, or future endeavors. Launchings were not announced until they took place. [[Cosmonaut]] names were not released until they flew. Mission details were sparse. Outside observers did not know the size or shape of their rockets or cabins or most of their spaceships, except for the first Sputniks, lunar probes, and Venus probe.<ref name="ebooks.ohiolink.edu">{{cite web|url=http://ebooks.ohiolink.edu/xtf-ebc/view?docId=tei/sv2/9781461430520/9781461430520.xml&query=&brand=default|title=OhioLINK Institution Selection |website=Ebooks.ohiolink.edu|access-date=2016-01-19}}</ref>', 102 => '', 103 => 'The Soviet military maintained control over the space program; Korolev's [[OKB-1]] design bureau was subordinated under the [[Ministry of General Machine Building]],<ref name="books.google.com"/> tasked with the development of intercontinental ballistic missiles, and continued to give its assets random identifiers into the 1960s.<ref name="books.google.com"/> They cloaked the program in a shroud of secrecy; public pronouncements were uniformly positive. As far as the public knew, the Soviet space program had never experienced failure. According to historian James Andrews, "With almost no exceptions, coverage of Soviet space exploits, especially in the case of human space missions, omitted reports of failure or trouble".<ref name="books.google.com"/>', 104 => '', 105 => 'Dominic Phelan says in the book ''Cold War Space Sleuths'' (Springer-Praxis 2013): "The [[USSR]] was famously described by [[Winston Churchill]] as 'a riddle, wrapped in a mystery, inside an enigma' and nothing signified this more than the search for the truth behind its space program during the Cold War. Although the Space Race was literally played out above our heads, it was often obscured by a figurative 'space curtain' that took much effort to see through".<ref name="ebooks.ohiolink.edu"/>', 106 => '', 107 => '===United States planning===', 108 => '{{Further|Space policy of the United States}}', 109 => 'Initially, President Eisenhower was worried that a satellite passing above a nation at over {{convert|100|km|mi|sp=us}} might be seen as violating that nation's airspace.{{sfn|Schefter|1999|p=8}} He was concerned that the Soviet Union would accuse the Americans of an illegal overflight, thereby scoring a propaganda victory at his expense.{{sfn|Schefter|1999|p=6}} Eisenhower and his advisors were of the opinion that a nation's airspace sovereignty did not extend past the [[Kármán line]], and they used the 1957–58 International Geophysical Year launches to establish this principle in international law.{{sfn|Schefter|1999|p=8}} Eisenhower also feared that he might cause an international incident and be called a "warmonger" if he were to use military missiles as launchers. Therefore, he selected the untried [[Naval Research Laboratory]]'s [[Vanguard rocket]], which was a research-only rocket.{{sfn|Schefter|1999|pp=15–18}} This meant that von Braun's team was not allowed to put a satellite into orbit with their Jupiter-C rocket, because of its intended use as a future military vehicle.{{sfn|Schefter|1999|pp=15–18}} On September 20, 1956, von Braun and his team did launch a Jupiter-C that was capable of putting a satellite into orbit, but the launch was used only as a suborbital test of reentry vehicle technology.{{sfn|Schefter|1999|pp=15–18}}', 110 => '', 111 => '===Sputnik===', 112 => 'Korolev received word about von Braun's 1956 Jupiter-C test and, mistakenly thinking it was a satellite mission that failed, expedited plans to get his own satellite in orbit. Since the R-7 was substantially more powerful than any of the US [[launch vehicle]]s, he made sure to take full advantage of this capability by designing [[Sputnik 3|Object D]] as his primary satellite.{{sfn|Cadbury|2006|pp=154–57}} It was given the designation 'D', to distinguish it from other R-7 payload designations 'A', 'B', 'V', and 'G' which were nuclear weapon payloads.{{sfn|Siddiqi|2003a|p=151}} Object D dwarfed the proposed US satellites, having a weight of {{convert|1400|kg|lb|sp=us}}, of which {{convert|300|kg|lb|sp=us}} would be composed of scientific instruments that would photograph the Earth, take readings on radiation levels, and check on the planet's magnetic field.{{sfn|Siddiqi|2003a|p=151}} However, things were not going along well with the design and manufacturing of the satellite, so in February 1957, Korolev sought and received permission from the Council of Ministers to build a ''Prosteishy Sputnik'' (PS-1), or simple satellite.{{sfn|Cadbury|2006|pp=154–57}} The council also decreed that Object D be postponed until April 1958.{{sfn|Siddiqi|2003a|p=155}} The new ''Sputnik'' was a metallic sphere that would be a much lighter craft, weighing {{convert|83.8|kg|lb|sp=us}} and having a {{convert|58|cm|in|adj=on|sp=us}} diameter.<ref>{{cite web', 113 => '| url = https://history.nasa.gov/sputnik/', 114 => '| title = Sputnik and The Dawn of the Space Age', 115 => '| first = Steve', 116 => '| last = Garber', 117 => '| date = October 10, 2007', 118 => '| work = Sputnik 50th Anniversary', 119 => '| publisher = [[National Aeronautic and Space Administration|NASA History Website]]', 120 => '| location = Washington', 121 => '}}</ref> The satellite would not contain the complex instrumentation that Object D had, but had two radio transmitters operating on different [[short wave radio]] frequencies, the ability to detect if a meteoroid were to penetrate its pressure hull, and the ability to detect the density of the Earth's [[thermosphere]].{{sfn|Hardesty|Eisman|2007|pp=72–73}}', 122 => '', 123 => '[[File:Sputnik asm.jpg|thumb|right|Replica of the first artificial satellite ''[[Sputnik 1]]'', 1957]]', 124 => '{{Listen', 125 => '| filename = Sputnik beep.ogg', 126 => '| title = ''Beep ... beep ... beep''', 127 => '| alt =', 128 => '| description = The signals of ''Sputnik 1'' continued for 22 days', 129 => '}}', 130 => 'Korolev was buoyed by the first successful launches of the R-7 rocket in August and September, which paved the way for the launch of ''Sputnik''.{{sfn|Siddiqi|2003a|pp=163–68}} Word came that the US was planning to announce a major breakthrough at an International Geophysical Year conference at the [[United States National Academy of Sciences|National Academy of Sciences]] in Washington D.C., with a paper titled "Satellite Over the Planet", on October 6, 1957.{{sfn|Cadbury|2006|p=163}} Korolev anticipated that von Braun might launch a Jupiter-C with a satellite payload on or around October 4 or 5, in conjunction with the paper.{{sfn|Cadbury|2006|p=163}} He hastened the launch, moving it to October 4.{{sfn|Cadbury|2006|p=163}} The launch vehicle for PS-1 was a modified R-7 – vehicle 8K71PS number M1-PS – without much of the test equipment and radio gear that was present in the previous launches.{{sfn|Siddiqi|2003a|pp=163–68}} It arrived at the Soviet missile base [[Baikonur Cosmodrome|Tyura-Tam]] in September and was prepared for its mission at [[Gagarin's Start|launch site number one]].{{sfn|Siddiqi|2003a|pp=163–68}} The first launch took place on Friday, October 4, 1957 at exactly 10:28:34&nbsp;pm Moscow time, with the R-7 and the now named [[Sputnik 1]] satellite lifting off the launch pad and placing the artificial "moon" into an orbit a few minutes later.{{sfn|Hardesty|Eisman|2007|p=74}} This "fellow traveler", as the name is translated in English, was a small, beeping ball, less than two feet in diameter and weighing less than 200 pounds. But the celebrations were muted at the launch control center until the down-range far east tracking station at [[Yelizovo|Kamchatka]] received the first distinctive beep&nbsp;... beep&nbsp;... beep sounds from ''Sputnik 1''{{'}}s radio transmitters, indicating that it was on its way to completing its first orbit.{{sfn|Hardesty|Eisman|2007|p=74}} About 95 minutes after launch, the satellite flew over its launch site, and its radio signals were picked up by the engineers and military personnel at Tyura-Tam: that's when Korolev and his team celebrated the first successful artificial satellite placed into Earth-orbit.{{sfn|Cadbury|2006|pp=164–65}}', 131 => '', 132 => '===US response===', 133 => '{{Main|Sputnik crisis}}', 134 => '', 135 => '====CIA assessment====', 136 => 'At the latest, the successful start of [[Sputnik 2]] with its weight of more than 500&nbsp;kg proved that the USSR had achieved a leading advantage in rocket technology. The dumbfounded [[Central Intelligence Agency|CIA]] estimated the launch weight at 500 metric tons requiring an initial thrust of more than 1,000 tons and supposed the use of a three-stage rocket. In a secret report, it concluded that ″the launching of two earth satellites must have been a stupendous scientific achievement. … Launching of these satellites does indicate, however, that the USSR has perfected an ICBM which they can put on any desired target with accuracy."', 137 => '<ref>{{cite web |url=https://www.cia.gov/readingroom/docs/DOC_0000124270.pdf |title=Analysis of Soviet Earth Satellite and Launching Device |access-date=2022-12-01 |date=1957-11-09 }}</ref>, In reality, the launch weight of the Soviet rocket was 267 metric tons with an initial thrust of 410 tons with one and a half stages. The CIA's misjudgement was caused by extrapolating the parameters of the US [[SM-65 Atlas|Atlas]] rocket developed at the same time (launch weight 82 tons, initial thrust 135 tones, maximum payload of 70 kg for [[low Earth orbit]]).<ref>{{cite encyclopedia |author=Mark Wade |url=http://www.astronautix.com/a/atlasa.html |title=Atlas A |encyclopedia=Encyclopedia Astronautica |access-date=2022-11-01}}</ref> In part, the favourable data of the Soviet launcher was based on concepts proposed by the German rocket scientists headed by [[Helmut Gröttrup]] on [[Gorodomlya Island]], such as, among other things, the rigorous weight saving, the control of the residual fuel quantities and a reduced thrust to weight relation of 1.4 instead of usual factor 2.<ref>{{Cite book |last=Gröttrup |first=Helmut |title=Aus den Arbeiten des deutschen Raketen-Kollektivs in der Sowjet-Union. |date=April 1958 |publisher=Deutsche Gesellschaft für Raketentechnik und Raumfahrt |series=Raketentechnik und Raumfahrtforschung |pages=58–62 |language=de |trans-title=About the work of the German rocketry collective in the Soviet Union |quote=Towards the end of the war the general opinion was that a starting acceleration of 2 g was optimal. We have carried out detailed studies on this point, taking into account the increase in engine weights and the weights of the components used to transmit thrust. It turned out that a starting acceleration of a considerably smaller value can be optimal. One of our projects was designed for a starting acceleration of 1.4 g.}}</ref> The CIA had heard about such details already in January 1954 when it interrogated Göttrup after his return from the USSR but did not take him seriously.<ref>{{Cite web |url=https://archive.org/details/CIA-RDP80-00810A003300530005-2 |title=Development of guided missiles at Bleicherode and Institut 88 |work=[[Central Intelligence Agency|CIA Historical Collections]] |date=1954-01-22 |access-date=2022-09-30 |quote=It was generally held up to now that the ratio thrust/take-off weights should be approximately two. [Gröttrup] discovered … that values as low as 1.2 for this ratio could give optimum results under certain conditions.}} Remark: The designations R-12 und R-14 are related to the internal project names (also known as G-2 und G-4), not to the rockets installed during the Cuban Missile Crisis</ref>', 138 => '', 139 => '====US reactions====', 140 => '[[File:Explorer1 people.jpg|thumb|upright|[[William Hayward Pickering]], [[James Van Allen]], and [[Wernher von Braun]] display a full-scale model of ''Explorer 1'' at a Washington, DC news conference after confirmation the satellite was in orbit.]]', 141 => 'The Soviet success raised a great deal of concern in the United States. For example, economist Bernard Baruch wrote in an open letter titled "The Lessons of Defeat" to the ''[[New York Herald Tribune]]'': "While we devote our industrial and technological power to producing new model automobiles and more gadgets, the Soviet Union is conquering space. ... It is Russia, not the United States, who has had the imagination to hitch its wagon to the stars and the skill to reach for the moon and all but grasp it. America is worried. It should be."<ref>{{cite book|last1=Crompton|first1=Samuel|title=Sputnik/Explorer I: The Race to Conquer Space|year= 2007|publisher=Chelsea House Publications|location=New York City|isbn=978-0791093573|page=4}}</ref>', 142 => '', 143 => 'Eisenhower ordered project Vanguard to move up its timetable and launch its satellite much sooner than originally planned.{{sfn|Brzezinski|2007|pp=254–67}} The December 6, 1957 [[Vanguard TV3|Project Vanguard launch failure]] occurred at [[Cape Canaveral Air Force Station]] in Florida. It was a monumental failure, exploding a few seconds after launch, and it became an international joke. The satellite appeared in newspapers under the names Flopnik, Stayputnik, Kaputnik,<ref name="O'Neill, Terry 2002">O'Neill, Terry. The Nuclear Age. San Diego: Greenhaven, Inc., 2002.(146)</ref> and Dudnik.<ref>Knapp, Brian. Journey into Space. Danbury: Grolier, 2004.(17)</ref> In the United Nations, the Soviet delegate offered the US representative aid "under the Soviet program of technical assistance to backwards nations."<ref name="O'Neill, Terry 2002"/> Only in the wake of this very public failure did von Braun's Redstone team get the go-ahead to launch their Jupiter-C rocket as soon as they could. In Britain, the US's Western Cold War ally, the reaction was mixed: some celebrated the fact that the Soviets had reached space first, while others feared the destructive potential that military uses of spacecraft might bring.<ref>Barnett, Nicholas. '"Russia Wins Space Race": The British Press and the Sputnik Moment', ''Media History'', (2013) 19:2, 182–95.</ref> The ''[[Daily Express]]'' predicted that the US would catch up to and pass the USSR in space; "never doubt for a moment that America would be successful".<ref name="time19571014">{{Cite web |date=1957-10-14 |title=THE NATION: Red Moon Over the U.S. |url=http://www.time.com/time/magazine/article/0,9171,862748,00.html |url-status=dead |archive-url=https://web.archive.org/web/20090506101411/http://www.time.com:80/time/magazine/article/0,9171,862748,00.html |archive-date=2009-05-06 |access-date=2016-02-24 |publisher=TIME}}</ref>', 144 => '', 145 => 'On January 31, 1958, nearly four months after the launch of ''Sputnik 1'', von Braun and the United States successfully launched its first satellite on a four-stage [[Juno I]] rocket derived from the US Army's Redstone missile, at Cape Canaveral.<ref name = nicogossian1993>{{cite book|last=Nicogossian|first=Arnauld E.|title=Space Biology and Medicine: Space and Its Exploration |year=1993|publisher=American Institute of Aeronautics|location=Washington, DC.|page=285}}</ref> The satellite ''[[Explorer 1]]'' was {{convert|30.66|lb|kg}} in mass.<ref name = nicogossian1993/> The payload of [[Explorer 1]] weighed {{convert|18.35|lb|kg}}. It carried a micrometeorite gauge and a [[Geiger-Müller tube]]. It passed in and out of the Earth-encompassing radiation belt with its {{convert|360|by|2534|km|nmi|adj=on|order=flip|sp=us}} orbit, therefore saturating the tube's capacity and proving what Dr. [[James Van Allen]], a space scientist at the [[University of Iowa]], had theorized.<ref name = nicogossian1993/> The belt, named the [[Van Allen radiation belt]], is a doughnut-shaped zone of high-level radiation intensity around the Earth above the magnetic equator.<ref name="Ref-1">{{cite book|last=Angelo|first=Joseph, A.|title=Encyclopedia of Space Astronomy|url=https://archive.org/details/encyclopediaofsp0000ange |url-access=registration|year=2006|publisher= Facts on Files, Inc.|location=New York|page=[https://archive.org/details/encyclopediaofsp0000ange/page/634 634]|isbn=9780816053308}}</ref> Van Allen was also the man who designed and built the satellite instrumentation of ''Explorer 1''. The satellite measured three phenomena: cosmic ray and radiation levels, the temperature in the spacecraft, and the frequency of collisions with micrometeorites. The satellite had no [[computer memory|memory]] for data storage, therefore it had to transmit continuously.<ref>{{cite book|last=Angelo |first= Joseph, A.|title=Encyclopedia of Space Astronomy|url= https://archive.org/details/encyclopediaofsp0000ange |url-access=registration|year=2006|publisher=Facts on Files, Inc.|location=New York|page=[https://archive.org/details/encyclopediaofsp0000ange/page/225 225]|isbn= 9780816053308}}</ref> In March 1958 a second satellite was sent into orbit with augmented cosmic ray instruments.', 146 => '', 147 => '====Creation of NASA====', 148 => '{{Main|Creation of NASA}}', 149 => 'On April 2, 1958, President Eisenhower reacted to the Soviet space lead in launching the first satellite by recommending to the US Congress that a civilian agency be established to direct nonmilitary space activities. Congress, led by [[Party Leaders of the United States Senate|Senate Majority Leader]] [[Lyndon B. Johnson]], responded by passing the [[National Aeronautics and Space Act]], which Eisenhower signed into law on July 29, 1958. This law turned the [[National Advisory Committee on Aeronautics]] into the [[NASA|National Aeronautics and Space Administration]] (NASA). It also created a Civilian-Military Liaison Committee, appointed by the President, responsible for coordinating the nation's civilian and military space programs.<ref>{{cite web |url=https://history.nasa.gov/SP-4201/ch4-6.htm |title=Birth of NASA |website=history.nasa.gov |access-date=February 12, 2020}}</ref>', 150 => '', 151 => 'On October 21, 1959, Eisenhower approved the transfer of the Army's remaining space-related activities to NASA. On July 1, 1960, the Redstone Arsenal became NASA's [[Marshall Space Flight Center|George C. Marshall Space Flight Center]], with von Braun as its first director. Development of the [[Saturn (rocket family)|Saturn rocket family]], which when mature gave the US parity with the Soviets in terms of lifting capability, was thus transferred to NASA.<ref>{{cite book |last1=Bilstein |first1=Roger E. |title=Stages to Saturn |publisher=NASA |location=Washington D.C. |page=39 |url=https://history.nasa.gov/SP-4206/ch2.htm |access-date=March 19, 2021 |chapter=2. Aerospace Alphabet: ABMA, ARPA, MSFC}}</ref>', 152 => '', 153 => '==Robotic lunar probes==', 154 => 'In 1958, Korolev upgraded the R-7 to be able to launch a {{convert|400|kg|lb|adj=on}} payload to the Moon. The [[Luna programme|Luna program]] began with three failed secret 1958 attempts to launch [[Luna E-1 No.1|Luna E-1]]-class [[Lander (spacecraft)#Impactors|impactor]] probes.{{sfn|Siddiqi|2018|p=xv}} The fourth attempt, [[Luna 1]], launched successfully on January 2, 1959, but missed the Moon. The fifth attempt on June 18 also failed at launch. The {{convert|390|kg|lb|adj=on}} [[Luna 2]] successfully impacted the Moon on September 14, 1959. The {{convert|278.5|kg|lb|adj=on}} [[Luna 3]] successfully flew by the Moon and sent back pictures of its far side on October 7, 1959.{{sfn|Siddiqi|2018|p=14}} In total, the Luna program landed one successful impactor out of six attempts; one flyby out of three attempts; two soft landers out of 13 attempts; six orbiters out of eight attempts; two [[lunar rover]]s out of three attempts; and three sample returns out of 11 attempts.', 155 => '', 156 => 'The US first embarked on the [[Pioneer program]] in 1958 by launching the [[Pioneer 0|first probe]], albeit ending in failure. A subsequent probe named [[Pioneer 1]] was launched with the intention of orbiting the Moon only to result in a partial mission success when it reached an apogee of 113,800&nbsp;km before falling back to Earth. The missions of [[Pioneer 2]] and [[Pioneer 3]] failed whereas [[Pioneer 4]] had one successful lunar flyby in March 1959.<ref>{{cite web |author1=NASA |title=Pioneer 0, 1, 2 |url=http://msl.jpl.nasa.gov/QuickLooks/pioneer0QL.html |access-date=11 July 2022 |archive-url=https://web.archive.org/web/20090131181021/http://msl.jpl.nasa.gov/QuickLooks/pioneer0QL.html |archive-date=31 January 2009}}</ref><ref>{{cite book | title = [[The Radiation Belt and Magnetosphere]] | last = Hess | first = Wilmot | authorlink = Wilmot N. Hess | year = 1968}}</ref>', 157 => '', 158 => 'The [[Ranger program]] was started in 1959 by NASA's [[Jet Propulsion Laboratory]]. The Block I [[Ranger 1]] and [[Ranger 2]] suffered [[Atlas-Agena]] launch failures in August and November 1961. The {{convert|727|lb|kg|adj=on}} Block II [[Ranger 3]] launched successfully on January 26, 1962, but missed the Moon. The {{convert|730|lb|kg|adj=on}} [[Ranger 4]] became the first US spacecraft to reach the Moon, but its [[photovoltaic module|solar panel]]s and navigational system failed near the Moon and it impacted the far side without returning any scientific data. [[Ranger 5]] ran out of power and missed the Moon by {{convert|725|km|nmi|sp=us}} on October 21, 1962. The first successful Ranger mission was the {{convert|806|lb|kg|adj=on}} Block III [[Ranger 7]] which impacted on July 31, 1964.{{sfn|Siddiqi|2018|p=41}} Ranger had three successful impactors out of nine attempts.<ref>{{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1964-007A|title=National Space Science Data Center – Ranger 6|publisher=National Air and Space Administration |access-date=June 19, 2012|ref=nssdc1964-007A}}</ref>', 159 => '', 160 => 'The [[Surveyor program]] had five successful soft landings out of seven attempts from 1966 to 1968. The [[Lunar Orbiter program]] had five successes out of five attempts in 1966–1967.', 161 => '', 162 => '==First mammals in space==', 163 => '', 164 => 'The US and the USSR sent animals into space to determine the safety of the environment before sending the first humans. The USSR used [[space dogs|dogs]] for this purpose, and the US used [[monkeys and apes in space|monkeys and apes]]. The first mammal in space was [[Albert II (monkey)|Albert II]], a rhesus monkey launched by the US on a sub-orbital flight on June 14, 1949, who died on landing due to a parachute malfunction.<ref name=albert2>{{cite web |title=The Beginnings of Research in Space Biology at the Air Force Missile Development Center, 1946-1952 |url=https://history.nasa.gov/afspbio/part1.htm |publisher=NASA |access-date=26 June 2021 |date=January 1958}}</ref>', 165 => '', 166 => '[[File:Posta Romana - 1959 - Laika 120 B.jpg|thumb|right|Laika on a Romanian post stamp]]', 167 => 'The USSR sent the dog [[Laika]] into orbit on [[Sputnik 2]] on November 3, 1957 for an intended ten-day flight. They did not yet have the technology to return Laika safely to Earth, and the government reported Laika died when the oxygen ran out,<ref name=Beischer1962>{{cite journal |author=DE Beischer and AR Fregly|title=Animals and man in space. A chronology and annotated bibliography through the year 1960. |journal=US Naval School of Aviation Medicine |volume=ONR TR ACR-64 |issue=AD0272581 |year=1962 |url=http://archive.rubicon-foundation.org/9288 |archive-url=https://archive.today/20121204154830/http://archive.rubicon-foundation.org/9288 |url-status=usurped |archive-date=December 4, 2012 |access-date=14 June 2011}}</ref> but in October 2002 her true cause of death was reported as stress and overheating on the fourth orbit<ref>{{cite news| url = http://news.bbc.co.uk/2/hi/sci/tech/2367681.stm | title = First dog in space died within hours | publisher = BBC | date=28 October 2002 | access-date=4 January 2010}}</ref> due to failure of the air conditioning system.<ref name="AT-20171103">{{cite news |last=Berger |first=Eric |title=The first creature in space was a dog. She died miserably 60 years ago |url=https://arstechnica.com/science/2017/11/sixty-years-ago-the-first-creature-went-into-space-a-stray-moscow-dog/ |date=3 November 2017 |work=[[Ars Technica]] |access-date=3 November 2017 |archive-url=https://web.archive.org/web/20171201182453/https://arstechnica.com/science/2017/11/sixty-years-ago-the-first-creature-went-into-space-a-stray-moscow-dog/ |archive-date=1 December 2017 |url-status=dead }}</ref> At a Moscow press conference in 1998 [[Oleg Gazenko]], a senior Soviet scientist involved in the project, stated "The more time passes, the more I'm sorry about it. We did not learn enough from the mission to justify the death of the dog...".<ref>Dick Abadzis, afterword to ''Laika'', First Second, 2007, {{ISBN|1-59643-302-7}}</ref>', 168 => '', 169 => 'On August 19, 1960, the dogs [[Soviet space dogs#Belka and Strelka|Belka and Strelka]] were sent into orbit aboard [[Korabl-Sputnik 2|Sputnik 5]] and safely returned.', 170 => '', 171 => 'The Americans sent the [[chimpanzee]] [[Ham (chimpanzee)|Ham]] on a suborbital flight of the Mercury capsule on [[Mercury-Redstone 2]] and recovered him safely on January 31, 1961.<ref name=csrvlmt>{{cite news|url=https://news.google.com/newspapers?id=SYNfAAAAIBAJ&pg=4039%2C4654|work=Lewiston Morning Tribune|location=Idaho|agency=Associated Press|title=Chimp survives 420-mile ride into space|date=February 1, 1961|page=1}}</ref><ref name=chsent>{{cite news|url=https://news.google.com/newspapers?id=wVFYAAAAIBAJ&pg=3503%2C5627337|work=The Bulletin|location=Bend, Oregon|agency=UPI|title=Chimp sent out on flight over Atlantic|date=January 31, 1961|page=1}}</ref>', 172 => '', 173 => 'The chimpanzee [[Enos (chimpanzee)|Enos]] was launched on [[Mercury-Atlas 5]] on November 29, 1961 into what was supposed to be a three-orbit flight.<ref>{{cite news|url=https://www.newspapers.com/clip/32507843/the_daily_advertiser/|title=Operational Trouble Shortens Chimp's Ride|newspaper=The Daily Advertiser|location=Lafayette, Louisiana|date=November 29, 1961|page=1|via=Newspapers.com|agency=Associated Press}}</ref> However, the mission was aborted after two orbits due to capsule overheating, and a malfunctioning "avoidance conditioning" test subjecting him to 76 electrical shocks.<ref>Animals In Space: From Research Rockets to the Space Shuttle, Chris Dubbs and [[Colin Burgess (author)|Colin Burgess]], 2007</ref>', 174 => '', 175 => '==First humans in space==', 176 => '===Vostok===', 177 => '{{Main|Vostok programme}}', 178 => '[[File:Vostok spacecraft replica.jpg|thumb|upright|Replica of the [[Zenit (satellite)|Zenit]] and [[Vostok (spacecraft)|Vostok]] spacecraft bus]]', 179 => 'The Soviets designed their first human [[space capsule]] using the same [[spacecraft bus]] as their [[Zenit spy satellite]],<ref>{{Cite web|url=https://www.thespacereview.com/article/2844/1|title=Declassified documents offer a new perspective on Yuri Gagarin's flight|date=12 October 2015|author=[[Asif Siddiqi]]|archive-url=https://web.archive.org/web/20201213141408/https://www.thespacereview.com/article/2844/1|archive-date=13 December 2020|url-status=live}}</ref> forcing them to keep the details and true appearance secret until after the Vostok program was over. The craft consisted of a spherical descent module with a mass of {{convert|2.46|t|lb}} and a diameter of {{convert|2.3|m|ft|sp=us}}, with a cylindrical inner cabin housing the cosmonaut, instruments, and escape system; and a [[biconic]] instrument module with a mass of {{convert|2.27|t|lb}}, {{convert|2.25|m|ft|sp=us}} long and {{convert|2.43|m|ft|sp=us}} in diameter, containing the engine system and propellant. After reentry, the cosmonaut would eject at about {{convert|7,000|m|ft|sp=us}} over the USSR and descend via parachute, while the capsule would land separately, because the descent module made an extremely rough landing that could have left a cosmonaut seriously injured.{{sfn|Hall|Shayler|2001|pp=149–57}} The "Vostok spaceship" was first displayed at the July 1961 [[Soviet air show|Tushino air show]], mounted on its launch vehicle's third stage, with the nose cone in place concealing the spherical capsule. A tail section with eight fins was added in an apparent attempt to confuse western observers. This also appeared on official commemorative stamps and a documentary.{{sfn|Gatland|1976|p=254}} The Soviets finally revealed the true appearance of their Vostok capsule at the April 1965 Moscow Economic Exhibition.', 180 => '', 181 => '[[File:Gagarin in Sweden.jpg|thumb|upright|Yuri Gagarin, the first person in space, 1961]]', 182 => 'On April 12, 1961, the USSR surprised the world by launching [[Yuri Gagarin]] into a single, 108-minute orbit around the Earth in a craft called [[Vostok 1]].{{sfn|Hall|Shayler|2001|pp=149–57}} They dubbed Gagarin the first [[cosmonaut]], roughly translated from Russian and Greek as "sailor of the universe". Gagarin's capsule was flown in automatic mode, since doctors did not know what would happen to a human in the weightlessness of space; but Gagarin was given an envelope containing the code that would unlock manual control in an emergency.{{sfn|Hall|Shayler|2001|pp=149–57}}', 183 => '', 184 => 'Gagarin became a national hero of the Soviet Union and the Eastern Bloc, and a worldwide celebrity. Moscow and other cities in the USSR held mass demonstrations, the scale of which was second only to the [[Moscow Victory Parade of 1945|World War II Victory Parade of 1945]].<ref>Pervushin (2011), [https://books.google.com/books?id=kMGlvz53P3cC&dq=%D0%B4%D0%B5%D0%BC%D0%BE%D0%BD%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B2+%D0%B4%D0%B5%D0%BD%D1%8C+%D0%BA%D0%BE%D1%81%D0%BC%D0%BE%D0%BD%D0%B0%D0%B2%D1%82%D0%B8%D0%BA%D0%B8&pg=PT488 7.1 Гражданин мира]</ref> April 12 was declared [[Cosmonautics Day]] in the USSR, and is celebrated today in Russia as one of the official "Commemorative Dates of Russia."<ref name="32FZ">{{Cite Russian law', 185 => '|ru_entity=Государственная Дума', 186 => '|ru_type=Федеральный закон', 187 => '|ru_number=32-ФЗ', 188 => '|ru_date=13 марта 1995 г.', 189 => '|ru_title=О днях воинской славы и памятных датах России', 190 => '|ru_effective_date=со дня официального опубликования', 191 => '|ru_published_in="Российская Газета", №52', 192 => '|ru_published_date=15 марта 1995 г', 193 => '|ru_url=http://ntc.duma.gov.ru/duma_na/asozd/asozd_text.php?code=22479', 194 => '|ru_amendment_type=Федерального закона', 195 => '|ru_amendment_number=59-ФЗ', 196 => '|ru_amendment_date=10 апреля 2009 г', 197 => '|ru_amendment_title=О внесении изменения в статью 1.1 федерального закона "О днях воинской славы и памятных датах России"', 198 => '|en_entity=[[State Duma]]', 199 => '|en_type=Federal Law', 200 => '|en_number=32-FZ', 201 => '|en_date=March 13, 1995', 202 => '|en_title=On the Days of Military Glory and the Commemorative Dates in Russia', 203 => '|en_effective_date=the day of the official publication', 204 => '|en_url', 205 => '|en_amendment_type=Federal Law', 206 => '|en_amendment_number=59-FZ', 207 => '|en_amendment_date=April 10, 2009', 208 => '|en_amendment_title=On Amending Article&nbsp;1.1 of the Federal Law "On the Days of Military Glory and the Commemorative Dates in Russia"', 209 => '}}</ref> In 2011, it was declared the International Day of Human Space Flight by the [[United Nations]].<ref>{{cite web |url=https://www.un.org/en/events/humanspaceflightday/ |title= UN Resolution A/RES/65/271, The International Day of Human Space Flight (12 April) |date=April 7, 2011 |access-date=January 19, 2015}}</ref>', 210 => '', 211 => 'The USSR demonstrated 24-hour launch pad turnaround and launched two piloted spacecraft, [[Vostok 3]] and [[Vostok 4]], in essentially identical orbits, on August 11 and 12, 1962.{{sfn|Hall|Shayler|2001|pp=183, 192}} The two spacecraft came within approximately {{convert|6.5|km|nmi|sp=us|abbr=off}} of one another, close enough for radio communication,{{sfn|Gatland|1976|pp=117–18}} but then drifted as far apart as {{convert|2850|km|nmi|sp=us|abbr=off}}. The Vostok had no maneuvering rockets to keep the two craft a controlled distance apart.{{sfn|Hall|Shayler|2001|pp=185–91}} Vostok 4 also set a record of nearly four days in space. The first woman, [[Valentina Tereshkova]], was launched into space on [[Vostok 6]] on June 16, 1963,{{sfn|Hall|Shayler|2001|pp=194–218}} as (possibly) a medical experiment. She was the only one to fly of a small group of female parachutist factory workers (unlike the male cosmonauts who were military test pilots),<ref>{{cite web|title=Kamanin diaries, April 16, 1965|url=http://www.astronautix.com/k/kamanindiaries.html|publisher=Astronautix.com|access-date=January 8, 2023}}</ref> chosen by the head of cosmonaut training because he read a tabloid article about the "[[Mercury 13]]" group of women wanting to become astronauts, and got the mistaken idea that NASA was actually entertaining this.{{sfn|Burgess|Hall|2009|p=229}}{{sfn|Hall|Shayler|2001|pp=194–218}} Five months after her flight, Tereshkova married [[Vostok 3]] cosmonaut [[Andriyan Nikolayev]],<ref>{{cite journal|first=Tamara|last=Eidelman|title=A Cosmic Wedding|journal=Russian Life|year=2013|volume=56|issue=6|pages=22–25}}</ref> and they had a daughter.<ref>{{cite book|title=The 'First Lady of Space': In Her Own Words|publisher=SpaceHistory101.com Press|year=2015|last1=Nikolaeva-Tereshkova|first1=Valentina Vladimirovna|isbn=978-1-887022-99-6|chapter=Preface|pages=4–7|location=Bethesda, MD|oclc=930799309|ref={{harvid|"Preface"|2003}}}}</ref>', 212 => '', 213 => '===Mercury===', 214 => '{{Main|Project Mercury}}', 215 => '[[File:Mercury Spacecraft.png|thumb|left|Cutaway of the Mercury capsule]]', 216 => 'The US Air Force had been developing a program to launch the first man in space, named [[Man in Space Soonest]]. This program studied several different types of one-man space vehicles, settling on a [[space capsule|ballistic re-entry capsule]] launched on a derivative [[Atlas LV-3B|Atlas missile]], and selecting a group of nine candidate pilots. After NASA's creation, the program was transferred over to the civilian agency's [[Space Task Group]] and renamed [[Project Mercury]] on November 26, 1958. The Mercury spacecraft was designed by the STG's chief engineer [[Maxime Faget]]. NASA selected a new group of [[astronaut]] (from the Greek for "star sailor") candidates from [[United States Navy|Navy]], [[United States Air Force|Air Force]] and [[United States Marine Corps|Marine]] test pilots, and narrowed this down to [[Mercury Seven|a group of seven]] for the program. Capsule design and astronaut training began immediately, working toward preliminary suborbital flights on the [[Mercury-Redstone Launch Vehicle|Redstone missile]], followed by orbital flights on the Atlas. Each flight series would first start unpiloted, then carry a non-human primate, then finally humans.', 217 => '', 218 => 'The Mercury spacecraft's principal designer was [[Maxime Faget]], who started research for human spaceflight during the time of the NACA.{{sfn|Catchpole|2001|p=150}} It consisted of a conical capsule with a cylindrical pack of three solid-fuel [[retro-rocket]]s strapped over a [[beryllium]] or [[fiberglass]] [[heat shield]] on the blunt end. Base diameter at the blunt end was {{convert|6.0|ft}} and length was {{convert|10.8|ft}}; with the launch escape system added, the overall length was {{convert|25.9|ft}}.{{sfn|Catchpole|2001|p=131}} With {{convert|100|ft3|m3}} of habitable volume, the capsule was just large enough for a single astronaut.{{sfn|Swenson|Grimwood|Alexander|1966|p=47}} The first suborbital spacecraft weighed {{convert|3000|lb}}; the heaviest, Mercury-Atlas 9, weighed {{convert|3000|lb}} fully loaded.{{sfn|Swenson|Grimwood|Alexander|1966|p=490}} On reentry, the astronaut would stay in the craft through splashdown by parachute in the Atlantic Ocean.', 219 => '', 220 => '[[File:Alan Shepard during Mercury-Redstone 3.jpg|thumb|right|[[Alan Shepard]], the first American in space, 1961]]', 221 => 'On May 5, 1961, [[Alan Shepard]] became the first American in space, launching in a [[sub-orbital spaceflight|ballistic trajectory]] on [[Mercury-Redstone 3]], in a spacecraft he named ''Freedom 7''.{{sfn|Schefter|1999|pp=138–43}} Though he did not achieve orbit like Gagarin, he was the first person to exercise manual control over his spacecraft's [[Orientation (geometry)|attitude]] and [[retro-rocket]] firing.{{sfn|Gatland|1976|pp=153–54}} After his successful return, Shepard was celebrated as a national hero, honored with parades in Washington, New York and Los Angeles, and received the [[NASA Distinguished Service Medal]] from [[President of the United States|President]] [[John F. Kennedy]].<ref>{{cite AV media |year=1961 |title=As World Watched. Spaceman Hailed After U.S. Triumph, 1961/05/08 (1961) |medium=Motion picture |url=https://archive.org/details/1961-05-08_As_World_Watched|access-date=February 20, 2012 |publisher=[[Universal Newsreel|Universal-International Newsreel]] |oclc=709678549}}</ref>', 222 => '', 223 => '[[File:Glenn62.jpg|thumb|right|[[John Glenn]], the first American in orbit, 1962]]', 224 => 'American [[Gus Grissom|Virgil "Gus" Grissom]] repeated Shepard's suborbital flight in ''[[Mercury-Redstone 4|Liberty Bell 7]]'' on July 21, 1961.<ref>{{Cite news |last=Neuman |first=Scott |date=2021-07-22 |title=A New Analysis May Have Just Solved A Decades-Old Mystery Of The Space Race |language=en |work=NPR |url=https://www.npr.org/2021/07/22/1019254674/gus-grissom-liberty-bell-mercury-the-right-stuff |access-date=2022-12-13}}</ref> Almost a year after the Soviet Union put a human into orbit, astronaut [[John Glenn]] became the first American to orbit the Earth, on February 20, 1962.{{sfn|Schefter|1999|pp=156–164}} His [[Mercury-Atlas 6]] mission completed three orbits in the ''Friendship 7'' spacecraft, and splashed down safely in the Atlantic Ocean, after a tense reentry, due to what falsely appeared from the telemetry data to be a loose heat-shield.{{sfn|Schefter|1999|pp=156–164}} On February 23, 1962, President Kennedy awarded Glenn with the [[NASA Distinguished Service Medal]] in a ceremony at [[Cape Canaveral Air Force Station]].<ref>{{cite web|url=https://www.nasa.gov/image-feature/president-john-f-kennedy-pins-nasa-distinguished-service-medal-on-john-glenn|title=President John F. Kennedy Pins NASA Distinguished Service Medal on John Glenn|publisher=NASA|access-date=July 30, 2018 |date=May 13, 2015}}</ref> As the first American in orbit, Glenn became a national hero, and received a [[ticker-tape parade]] in [[New York City]], reminiscent of that given for [[Charles Lindbergh]].', 225 => '', 226 => 'The United States launched three more Mercury flights after Glenn's: ''[[Aurora 7]]'' on May 24, 1962 duplicated Glenn's three orbits, ''[[Mercury-Atlas 8|Sigma 7]]'' on October 3, 1962 six orbits, and ''[[Faith 7]]'' on May 15, 1963 22 orbits (32.4 hours), the maximum capability of the spacecraft. NASA at first intended to launch one more mission, extending the spacecraft's endurance to three days, but since this would not beat the Soviet record, it was decided instead to concentrate on developing [[Project Gemini]].<ref>{{cite book|last=Catchpole|first=John|title=Project Mercury – NASA's First Manned Space Programme|date=2001|pages=385–386|publisher=Springer Praxis|location=Chichester, UK|isbn=1-85233-406-1|url-access=registration|url=https://archive.org/details/projectmercuryna0000catc}}</ref>', 227 => '', 228 => '==Kennedy aims for the Moon==', 229 => '{{Main|Apollo program}}', 230 => '{{see also|Moon landing}}', 231 => '', 232 => '{{Quote box |title = |quote =These are extraordinary times. And we face an extraordinary challenge. Our strength, as well as our convictions, have imposed upon this nation the role of leader in freedom's cause.', 233 => '', 234 => '... if we are to win the battle that is now going on around the world between freedom and tyranny, the dramatic achievements in space which occurred in recent weeks should have made clear to us all, as did the Sputnik in 1957, the impact of this adventure on the minds of men everywhere, who are attempting to make a determination of which road they should take. ... Now it is time to take longer strides{{snd}}time for a great new American enterprise{{snd}}time for this nation to take a clearly leading role in space achievement, which in many ways may hold the key to our future on Earth.', 235 => '', 236 => '... Recognizing the head start obtained by the Soviets with their large rocket engines, which gives them many months of lead-time, and recognizing the likelihood that they will exploit this lead for some time to come in still more impressive successes, we nevertheless are required to make new efforts on our own.', 237 => '', 238 => '... I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth. No single space project in this period will be more impressive to mankind, or more important for the long-range exploration of space, and none will be so difficult or expensive to accomplish.', 239 => '', 240 => '... Let it be clear that I am asking the Congress and the country to accept a firm commitment to a new course of action—a course which will last for many years and carry very heavy costs: 531 million dollars in fiscal '62—an estimated seven to nine billion dollars additional over the next five years. If we are to go only half way, or reduce our sights in the face of difficulty, in my judgment it would be better not to go at all.', 241 => '', 242 => '|source =John F. Kennedy,<br />Special Message to Congress on Urgent National Needs, May 25, 1961<ref name="Special Message">{{cite AV media |people=Kennedy, John F. |date=May 25, 1961 |title=Special Message to Congress on Urgent National Needs |medium=Motion picture (excerpt) |url=http://www.jfklibrary.org/Asset-Viewer/xzw1gaeeTES6khED14P1Iw.aspx |access-date=August 1, 2013 |publisher=John F. Kennedy Presidential Library and Museum |location=Boston, MA |id=Accession Number: TNC:200; Digital Identifier: TNC-200-2}}</ref>|align = right |width = 35% |border = 3px |fontsize = |bgcolor = #CCCCCC', 243 => ' }}', 244 => 'Before Gagarin's flight, US President [[John F. Kennedy#Space policy|John F. Kennedy]]'s support for America's piloted space program was lukewarm. [[Jerome Wiesner]] of MIT, who served as a science advisor to presidents Eisenhower and Kennedy, and himself an opponent of sending humans into space, remarked, "If Kennedy could have opted out of a big space program without hurting the country in his judgment, he would have."<ref>Quoted in John M. Logsdon, ''The Decision to Go to the Moon: Project Apollo and the National Interest'' (Cambridge, MA: MIT Press, 1970) p. 111.</ref> As late as March 1961, when NASA administrator James E. Webb submitted a budget request to fund a Moon landing before 1970, Kennedy rejected it because it was simply too expensive.<ref>[[David E. Bell]], Memorandum for the President, "National Aeronautics and Space Administration Budget Problem", March 22, 1961, NASA Historical Reference Collection; U.S. Congress, House, Committee of Science and Astronautics, ''NASA Fiscal 1962 Authorization'', ''Hearings'', 87th Cong., 1st. sess., 1962, pp. 203, 620; Logsdon, Decision to go to the Moon, pp. 94–100.</ref> Some were surprised by Kennedy's eventual support of NASA and the space program because of how often he had attacked the Eisenhower administration's inefficiency during the election.<ref>Wolfe, Tom. The Right Stuff. New York: Picador, 1979.(179)</ref>', 245 => '', 246 => 'Gagarin's flight changed this; now Kennedy sensed the humiliation and fear on the part of the American public over the Soviet lead. Additionally, the [[Bay of Pigs invasion]], planned before his term began but executed during it, was an embarrassment to his administration due to the colossal failure of the US forces.<ref>Roger D. Launius and Howard E. McCurdy, eds, Spaceflight and the Myth of Presidential Leadership (Champaign, IL: University of Illinois Press, 1997), 56.</ref> Looking for something to save political face, he sent a memo dated April 20, 1961, to Vice President [[Lyndon B. Johnson]], asking him to look into the state of America's space program, and into programs that could offer [[NASA]] the opportunity to catch up.<ref>Kennedy to Johnson,[http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo1.pdf "Memorandum for Vice President,"] {{Webarchive|url=https://web.archive.org/web/20170131222858/http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo1.pdf |date=January 31, 2017 }} April 20, 1961.</ref> The two major options at the time were either the establishment of an Earth orbital space station or a crewed landing on the Moon. Johnson, in turn, consulted with von Braun, who answered Kennedy's questions based on his estimates of US and Soviet rocket lifting capability.<ref>{{cite web|title=Memo, Wernher von Braun to the Vice President of the United States|last1=von Braun|first1=Wernher|url=http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo3.pdf|date=April 29, 1961|publisher=NASA|access-date=January 8, 2023|archive-date=May 13, 2005|archive-url=https://web.archive.org/web/20050513043040/http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo3.pdf|url-status=dead}}</ref> Based on this, Johnson responded to Kennedy, concluding that much more was needed to reach a position of leadership, and recommending that the crewed Moon landing was far enough in the future that the US had a fighting chance to achieve it first.<ref name="lbjmemo">{{cite web|title=Memo, Johnson to Kennedy, Evaluation of Space Program |last1=Johnson|first1=Lyndon B.|url=https://www.hq.nasa.gov/office/pao/History/Apollomon/apollo2.pdf|date= April 28, 1961|access-date=January 8, 2023}}</ref>', 247 => '', 248 => 'Kennedy ultimately decided to pursue what became the [[Apollo program]], and on May 25 took the opportunity to ask for Congressional support in a Cold War speech titled "Special Message on Urgent National Needs". {{Cws |title=Full text |link=Special Message to the Congress on Urgent National Needs|nobullet=yes}}', 249 => 'He justified the program in terms of its importance to national security, and its focus of the nation's energies on other scientific and social fields.<ref name="wechoose">{{cite web', 250 => '|last=Kennedy', 251 => '|first=John F.', 252 => '|url=http://www.jfklibrary.org/Historical+Resources/Archives/Reference+Desk/Speeches/JFK/003POF03SpaceEffort09121962.htm', 253 => '|title=Address at Rice University on the Nation's Space Effort', 254 => '|work=Historical Resources', 255 => '|publisher=John F. Kennedy Presidential Library and Museum', 256 => '|date=September 12, 1962', 257 => '|access-date=August 16, 2010', 258 => '|archive-date=May 6, 2010', 259 => '|archive-url=https://web.archive.org/web/20100506113709/http://www.jfklibrary.org/Historical%2BResources/Archives/Reference%2BDesk/Speeches/JFK/003POF03SpaceEffort09121962.htm', 260 => '|url-status=dead', 261 => '}}</ref> He rallied popular support for the program in his "[[We choose to go to the Moon]]" speech, on September 12, 1962, before a large crowd at [[Rice University]] Stadium, in Houston, Texas, near the construction site of the new [[Lyndon B. Johnson Space Center]] facility.<ref name="wechoose"/> {{Cws |title=Full text |link=We choose to go to the moon|nobullet=yes}}', 262 => '', 263 => 'Khrushchev responded to Kennedy's challenge with silence, refusing to publicly confirm or deny the Soviets were pursuing a "Moon race". As later disclosed, the Soviet Union secretly pursued [[Soviet crewed lunar programs|two competing crewed lunar programs]]. Soviet Decree 655–268, ''On Work on the Exploration of the Moon and Mastery of Space'', issued in August 1964, directed [[Vladimir Chelomei]] to develop a Moon flyby program with a projected first flight by the end of 1966, and directed Korolev to develop the Moon landing program with a first flight by the end of 1967.<ref name="Stabell2012">{{cite book|first1=Oddbjørn |last1=Engvold |first2=Bozena |last2=Czerny|first3=John|last3=Lattanzio |first4=Rolf |last4=Stabell|title=Astronomy and Astrophysics – Volume I|url=https://books.google.com/books?id=DXgvCwAAQBAJ&pg=PA228|date=30 November 2012|publisher=Encyclopedia of Life Support Systems (EOLSS)|isbn=978-1-78021-000-1|pages=228–}}</ref> In September 1965, Chelomei's flyby program was assigned to Korolev, who redesigned the cislunar mission to use his own [[Soyuz 7K-L1]] spacecraft and Chelomei's [[Proton (rocket)|Proton rocket]]. After Korolev's death in January 1966, another government decree of February 1967 moved the first crewed flyby to mid-1967, and the first crewed landing to the end of 1968.', 264 => '', 265 => '===Proposed joint US-USSR program===', 266 => 'After a first US-USSR [[Hugh Dryden|Dryden]]-[[Anatoly Blagonravov|Blagonravov]] agreement and cooperation on the [[Project Echo|Echo II balloon satellite]] in 1962,<ref name = technology/> President Kennedy proposed on September 20, 1963, in a speech before the [[United Nations General Assembly]], that the United States and the Soviet Union join forces in an effort to reach the Moon.<ref name="JFK Library 1963">{{cite web | title=Address before the 18th General Assembly of the United Nations, September 20, 1963 | website=JFK Library | date=1963-09-20 | url=https://www.jfklibrary.org/archives/other-resources/john-f-kennedy-speeches/united-nations-19630920 | access-date=2021-11-16 |quote="''Finally, in a field where the United States and the Soviet Union have a special capacity—in the field of space—there is room for new cooperation, for further joint efforts in the regulation and exploration of space. I include among these possibilities a joint expedition to the moon. Space offers no problems of sovereignty; by resolution of this Assembly, the members of the United Nations have foresworn any claim to territorial rights in outer space or on celestial bodies, and declared that international law and the United Nations Charter will apply. Why, therefore, should man's first flight to the moon be a matter of national competition? Why should the United States and the Soviet Union, in preparing for such expeditions, become involved in immense duplications of research, construction, and expenditure? Surely we should explore whether the scientists and astronauts of our two countries—indeed of all the world—cannot work together in the conquest of space, sending someday in this decade to the moon not the representatives of a single nation, but the representatives of all of our countries.''"}}</ref> Kennedy thus changed his mind regarding the desirability of the space race, preferring instead to ease tensions with the Soviet Union by cooperating on projects such as a joint lunar landing.<ref>Stone, Oliver and Peter Kuznick, "The Untold History of the United States" (Gallery Books, 2012), p. 320</ref> Soviet Premier [[Nikita Khrushchev]] initially rejected Kennedy's proposal.<ref name="spacedaily">{{cite web|last=Sietzen|first=Frank|title=Soviets Planned to Accept JFK's Joint Lunar Mission Offer|url=http://www.spacedaily.com/news/russia-97h.html|work="SpaceCast News Service" Washington DC|date=October 2, 1997 |access-date=February 1, 2011}}</ref> However, on October 2, 1997, it was reported that Khrushchev's son [[Sergei Khrushchev|Sergei]] claimed Khrushchev was poised to accept Kennedy's proposal at the time of [[assassination of John F. Kennedy|Kennedy's assassination]] on November 22, 1963. During the next few weeks he reportedly concluded that both nations might realize cost benefits and technological gains from a joint venture, and decided to accept Kennedy's offer based on a measure of rapport during their years as leaders of the world's two superpowers, but changed his mind and dropped the idea since he did not have the same trust for Kennedy's successor, Lyndon Johnson.<ref name="spacedaily" />', 267 => '', 268 => 'Some cooperation in robotic space exploration nevertheless did take place,<ref>{{cite web |author=Sagdeev, Roald |author2=Eisenhower, Susan |date=28 May 2008 |title=United States-Soviet Space Cooperation during the Cold War |url=http://www.nasa.gov/50th/50th_magazine/coldWarCoOp.html |access-date=19 July 2009}}</ref> such as a combined ''[[Venera 4]]''–''[[Mariner 5]]'' data analysis under a joint Soviet–American working group of [[COSPAR]] in 1969, allowing a more complete drawing of the profile of the [[atmosphere of Venus]].<ref>{{cite journal|doi=10.1016/0019-1035(69)90052-9|author=[[Carl Sagan]]|date=September 1969|title=The COSPAR Meetings in Prague|journal=[[Icarus (journal)|Icarus]]|volume=11|issue=2|pages=268–272|bibcode=1969Icar...11..268S}}</ref><ref>{{cite conference |title=Report on the Activities of the COSPAR Working Group VII |page=94 |date=11–24 May 1969 |location=Prague, Czechoslovakia |book-title=Preliminary Report, COSPAR Twelfth Plenary Meeting and Tenth International Space Science Symposium |publisher=[[National Academy of Sciences]]}}</ref> Eventually the [[Apollo-Soyuz mission]] was realized afterall, which furthermore laid the foundations for the [[Shuttle-Mir program]] and the [[ISS]].', 269 => '', 270 => 'As President, Johnson steadfastly pursued the Gemini and Apollo programs, promoting them as Kennedy's legacy to the American public. One week after Kennedy's death, he issued [[s:Executive Order 11129|Executive Order 11129]] renaming the Cape Canaveral and [[Kennedy Space Center|Apollo launch]] facilities after Kennedy.', 271 => '', 272 => '==First crewed spacecraft==', 273 => 'Focused by the commitment to a Moon landing, in January 1962 the US announced [[Project Gemini]], a two-person spacecraft that would support the later three-person Apollo by developing the key spaceflight technologies of [[space rendezvous]] and [[docking and berthing of spacecraft|docking of two craft]], flight durations of sufficient length to go to the Moon and back, and [[extra-vehicular activity]] to perform work outside the spacecraft.<ref>{{cite web', 274 => ' |last1 = Loff', 275 => ' |first1 = Sarah', 276 => ' |title = Gemini: Stepping Stone to the Moon', 277 => ' |url = http://www.nasa.gov/mission_pages/gemini/#.VKi1GsaWt78', 278 => ' |website = Gemini: Bridge to the Moon', 279 => ' |publisher = National Aeronautics and Space Administration', 280 => ' |access-date = 2015-01-04', 281 => ' |archive-url = https://web.archive.org/web/20141221151510/http://www.nasa.gov/mission_pages/gemini/', 282 => ' |archive-date = 2014-12-21', 283 => ' |location = Washington, DC', 284 => ' |date = 2013-10-21', 285 => ' |url-status = dead', 286 => '}}</ref>{{sfn|Siddiqi|2003a|p=383}}', 287 => '', 288 => 'Meanwhile, Korolev had planned further long-term missions for the Vostok spacecraft, and had four Vostoks in various stages of fabrication in late 1963 at his [[S.P. Korolev Rocket and Space Corporation Energia|OKB-1]] facilities.{{sfn|Siddiqi|2003a|pp=384–86}} The Americans' announced plans for Gemini represented major advances over the Mercury and Vostok capsules, and Korolev felt the need to try to beat the Americans to many of these innovations.{{sfn|Siddiqi|2003a|pp=384–86}} He had already begun designing the Vostok's replacement, the next-generation [[Soyuz (spacecraft)|Soyuz]], a multi-cosmonaut spacecraft that had at least the same capabilities as the Gemini spacecraft.{{sfn|Schefter|1999|p=149}} Soyuz would not be available for at least three years, and it could not be called upon to deal with this new American challenge in 1964 or 1965.{{sfn|Schefter|1999|p=198}} Political pressure in early 1964{{snd}}which some sources claim was from Khrushchev while other sources claim was from other Communist Party officials{{snd}}pushed him to modify his four remaining Vostoks to beat the Americans to new space firsts in the size of flight crews, and the duration of missions.{{sfn|Siddiqi|2003a|pp=384–86}}', 289 => '', 290 => '===Voskhod===', 291 => '{{Main|Voskhod programme}}', 292 => '[[File:Vostok and Voskhod crew seating.png|thumb|Korolev modified the one-person Vostok capsule into carrying three people, or two plus an airlock for spacewalk capability.]]', 293 => '', 294 => 'Korolev's conversion of his surplus Vostok capsules to the [[Voskhod spacecraft]] allowed the Soviet space program to beat the Gemini program in achieving the first spaceflight with a multi-person crew, and the first "spacewalk". Gemini took a year longer than planned to make its first flight, so [[Voskhod 1]] became the first spaceflight with a three-person crew on October 12, 1964.<ref>{{cite news', 295 => '| title = Space Troika on Target', 296 => '| author = Special', 297 => '| agency = UPI', 298 => '| newspaper = [[The Toronto Star]]', 299 => '| publisher = [[Torstar]]', 300 => '| location = Toronto', 301 => '| date = October 13, 1964', 302 => '| page = 1}}</ref> The USSR touted another "technological achievement" during this mission: it was the first space flight during which cosmonauts performed in a shirt-sleeve-environment.{{sfn|Schefter|1999|pp=199–200}} However, flying without spacesuits was not due to safety improvements in the Soviet spacecraft's environmental systems; rather this was because the craft's limited cabin space did not allow for spacesuits. Flying without spacesuits exposed the cosmonauts to significant risk in the event of potentially fatal cabin depressurization.{{sfn|Schefter|1999|pp=199–200}} This was not repeated until the US [[Apollo Command Module]] flew in 1968; the command module cabin was designed to transport three astronauts in a low pressure, pure oxygen [[shirt-sleeve environment]] while in space.', 303 => '', 304 => 'On March 18, 1965, about a week before the first piloted Project Gemini space flight, the USSR launched the two-cosmonaut [[Voskhod 2]] mission with [[Pavel Belyayev]] and [[Alexei Leonov]].<ref name="NYT650319">{{cite news', 305 => '| title = Russian Floats in Space for 10 Minutes; Leaves Orbiting Craft With a Lifeline; Moscow Says Moon Trip Is 'Target Now'', 306 => '| first = Henry', 307 => '| last = Tanner', 308 => '| url = https://www.nytimes.com/learning/general/onthisday/big/0318.html?scp=2&sq=Voskhod%202&st=cse', 309 => '| newspaper = [[The New York Times]]', 310 => '| location = New York', 311 => '| date = March 19, 1965', 312 => '| page = 1}}</ref> Voskhod 2's design modifications included the addition of an inflatable airlock to allow for [[extravehicular activity]] (EVA), also known as a spacewalk, while keeping the cabin pressurized so that the capsule's electronics would not overheat.{{sfn|Siddiqi|2003a|p=448}} Leonov performed the first-ever EVA as part of the mission.<ref name="NYT650319"/> A fatality was narrowly avoided when Leonov's spacesuit expanded in the vacuum of space, preventing him from re-entering the airlock.{{sfn|Schefter|1999|p=205}} In order to overcome this, he had to partially depressurize his spacesuit to a potentially dangerous level.{{sfn|Schefter|1999|p=205}} He succeeded in safely re-entering the spacecraft, but he and Belyayev faced further challenges when the spacecraft's atmospheric controls flooded the cabin with 45% pure oxygen, which had to be lowered to acceptable levels before re-entry.{{sfn|Siddiqi|2003a|pp=454-460}} The reentry involved two more challenges: an improperly timed retrorocket firing caused the Voskhod 2 to land {{convert|386|km|mi|sp=us}} off its designated target area, the city of [[Perm, Russia|Perm]]; and the instrument compartment's failure to detach from the descent apparatus caused the spacecraft to become unstable during reentry.{{sfn|Siddiqi|2003a|pp=454-460}}', 313 => '', 314 => 'By October 16, 1964, [[Leonid Brezhnev]] and a small cadre of high-ranking Communist Party officials deposed Khrushchev as Soviet government leader a day after Voskhod 1 landed, in what was called the "Wednesday conspiracy".<ref>{{cite news', 315 => '| title = Kremlin summit probably greased skids for Mr. K', 316 => '| last = Gayn', 317 => '| first = Mark', 318 => '| newspaper = [[The Toronto Star]]', 319 => '| publisher = [[Torstar]]', 320 => '| location = Toronto', 321 => '| date = October 16, 1964', 322 => '| page = 11}}</ref>', 323 => 'The new political leaders, along with Korolev, ended the technologically troublesome Voskhod program, cancelling Voskhod 3 and 4, which were in the planning stages, and started concentrating on reaching the Moon.{{sfn|Siddiqi|2003a|pp=510–11}} Voskhod 2 ended up being Korolev's final achievement before his death on January 14, 1966, as it became the last of the space firsts that the USSR achieved during the early 1960s. According to historian Asif Siddiqi, Korolev's accomplishments marked "the absolute zenith of the Soviet space program, one never, ever attained since."{{sfn|Siddiqi|2003a|p=460}} There was a two-year pause in Soviet piloted space flights while Voskhod's replacement, the Soyuz spacecraft, was designed and developed.<{{sfn|Schefter|1999|p=207}}', 324 => '', 325 => '===Gemini===', 326 => '{{Main|Project Gemini}}', 327 => '[[File:Gemini 7 in orbit - GPN-2006-000035.jpg|thumb|Rendezvous of Gemini 6 and 7, December 1965]]', 328 => 'Though delayed a year to reach its first flight, Gemini was able to take advantage of the USSR's two-year hiatus after Voskhod, which enabled the US to catch up and surpass the previous Soviet superiority in piloted spaceflight. Gemini had ten crewed missions between March 1965 and November 1966: [[Gemini 3]], [[Gemini 4]], [[Gemini 5]], [[Gemini 6A]], [[Gemini 7]], [[Gemini 8]], [[Gemini 9A]], [[Gemini 10]], [[Gemini 11]], and [[Gemini 12]]; and accomplished the following:', 329 => '', 330 => '* Every mission demonstrated the ability to change the craft's orbit.', 331 => '* Gemini 5 demonstrated eight-day endurance, long enough for a round trip to the Moon. Gemini 7 demonstrated a fourteen-day endurance flight.', 332 => '* Gemini 6A demonstrated [[space rendezvous|rendezvous]] and [[orbital station-keeping|station-keeping]] with Gemini 7 for three consecutive orbits at distances as close as {{convert|1|ft|m|sp=us}}.<ref>{{cite web', 333 => ' |title = The World's First Space Rendezvous', 334 => ' |work = Apollo to the Moon; To Reach the Moon – Early Human Spaceflight', 335 => ' |publisher = Smithsonian National Air and Space Museum', 336 => ' |url = http://www.nasm.si.edu/exhibitions/attm/rm.ey.g7.3.html', 337 => ' |access-date = September 17, 2006', 338 => ' |url-status=dead', 339 => ' |archive-url = https://web.archive.org/web/20071116112847/http://www.nasm.si.edu/exhibitions/attm/rm.ey.g7.3.html', 340 => ' |archive-date = November 16, 2007', 341 => ' |df = mdy-all', 342 => '}}</ref> Gemini 9A also achieved rendezvous with an [[Agena Target Vehicle]] (ATV).', 343 => '* Rendezvous and [[docking and berthing of spacecraft|docking]] with the ATV was achieved on Gemini 8, 10, 11, and 12. Gemini 11 achieved the first direct-ascent rendezvous with its Agena target on the first orbit.', 344 => '*[[Extravehicular activity]] (EVA) was perfected through increasing practice on Gemini 4, 9A, 10, 11, and 12. On Gemini 12, [[Edwin Aldrin|Edwin "Buzz" Aldrin]] spent over five hours working comfortably during three (EVA) sessions, finally proving that humans could perform productive tasks outside their spacecraft.', 345 => '* Gemini 10, 11, and 12 used the ATV's engine to make large changes in its orbit while docked. Gemini 11 used the Agena's rocket to achieve a crewed Earth orbit record [[apogee]] of {{convert|742|nmi|km|sp=us}}.', 346 => '', 347 => 'Gemini 8 experienced the first in-space mission abort on March 17, 1966, just after achieving the world's first docking, when a stuck or shorted thruster sent the craft into an uncontrolled spin. Command pilot [[Neil Armstrong]] was able to shut off the stuck thruster and stop the spin by using the re-entry control system.{{sfn|Gatland|1976|p=176}} He and his crewmate [[David Scott]] landed and were recovered safely.<ref name="Gemini 8 Crew and PJs">{{cite web |url=http://www.nasaimages.org/luna/servlet/detail/nasaNAS~7~7~32671~136538:Gemini-8-crew-stands-on-deck-of-rec |title=Gemini8 Crew and PJs |access-date=2010-06-15 |url-status=dead |archive-url=https://web.archive.org/web/20110727151042/http://www.nasaimages.org/luna/servlet/detail/nasaNAS~7~7~32671~136538%3AGemini-8-crew-stands-on-deck-of-rec |archive-date=2011-07-27 }}</ref>', 348 => '', 349 => 'Most of the novice pilots on the early missions would command the later missions. In this way, Project Gemini built up spaceflight experience for the pool of astronauts for the Apollo lunar missions. With the completion of Gemini, the US had demonstrated all the technologies necessary to make Kennedy's goal of landing a man on the Moon, with the exception of developing a large enough launch vehicle.', 350 => '', 351 => '[[File:Space Race 1957-1975 black text.png|center|thumb|upright=2.0|Progress in the Space Race, showing the US passing the Soviets in 1965]]', 352 => '', 353 => '==Soviet crewed Moon programs==', 354 => '{{Main|Soviet crewed lunar programs}}', 355 => '[[File:RP1357 p174 Saturn V (left) and N-1 (drawn to scale).svg|thumb|upright|American [[Saturn V]] and Soviet [[N1 (rocket)|N1-L3]] launch vehicles]]', 356 => '[[File:Apollo vs LOK (RP1357, p176, 191-220).svg|thumb|upright|American [[Apollo Command and Service Module]] and Soyuz 7K-L3 (Lunniy Orbitalny Korabl) lunar orbiters]]', 357 => '[[File:Manned Moon landers LK vs LM - to scale drawing.png|thumb|upright|Soviet LK (Lunniy Korabl) and American [[Apollo Lunar Module]] lunar landers]]', 358 => '', 359 => 'Korolev's design bureau produced two prospectuses for circumlunar spaceflight (March 1962 and May 1963), the main spacecraft for which were early versions of his Soyuz design. Soviet Communist Party Central Committee Command 655-268 officially established two secret, competing crewed programs for circumlunar flights and lunar landings, on August 3, 1964. The circumlunar flights were planned to occur in 1967, and the landings to start in 1968.{{sfn|Portree|1995|p=3}}', 360 => '', 361 => 'The circumlunar program (Zond), created by [[Vladimir Chelomey]]'s design bureau [[OKB-52]], was to fly two cosmonauts in a stripped-down [[Soyuz 7K-L1]], launched by Chelomey's [[Proton (rocket)|Proton UR-500]] rocket. The Zond sacrificed habitable cabin volume for equipment, by omitting the Soyuz orbital module. Chelomey gained favor with Khrushchev by employing members of his family.', 362 => '', 363 => 'Korolev's lunar landing program was designated N1/L3, for its [[N1 (rocket)|N1 super rocket]] and a more advanced [[Soyuz 7K-LOK|Soyuz 7K-L3]] spacecraft, also known as the lunar orbital module ("''Lunniy Orbitalny Korabl''", LOK), with a crew of two. A separate lunar lander ("''Lunniy Korabl''", [[LK (spacecraft)|LK]]), would carry a single cosmonaut to the lunar surface.{{sfn|Portree|1995|p=3}}', 364 => '', 365 => 'The N1/L3 launch vehicle had three stages to Earth orbit, a fourth stage for Earth departure, and a fifth stage for lunar landing assist. The combined space vehicle was roughly the same height and takeoff mass as the three-stage US [[Apollo spacecraft|Apollo]]-[[Saturn V]] and exceeded its takeoff thrust by 28% (45,400&nbsp;kN vs. 33,000&nbsp;kN), but had only about half the [[translunar injection]] payload capability.<ref>{{cite book|last1=Harford|first1=James|title=Korolev: how one man masterminded the Soviet drive to beat America to the moon |date=1997 |publisher=Wiley |location=New York; Chichester |isbn=978-0-471-32721-9|page=271}}</ref> The Saturn V used [[liquid rocket propellant#Hydrogen|liquid hydrogen fuel]] in its two upper stages, and carried a {{convert|48.6|t|lb|adj=on}} payload to the Moon,<ref name=svgiw>{{cite web|title=Ground Ignition Weights|url=https://history.nasa.gov/SP-4029/Apollo_18-19_Ground_Ignition_Weights.htm|website=NASA.gov|access-date=November 8, 2014}}</ref> enough for a three-person [[Apollo Command and Service Module|orbiter]] and two-person [[Apollo Lunar Module|lander]]. The USSR did not use liquid hydrogen until after the N-1 was canceled, therefore it was only capable of a {{convert|23.5|t|lb|adj=on}} translunar payload.', 366 => '', 367 => 'Following Khrushchev's ouster from power, Chelomey's Zond program was merged into the N1/L3 program.<ref>{{cite web |last1=Lindroos |first1=Marcus |title=The Soviet Manned Lunar Program |url=https://fas.org/spp/eprint/lindroos_moon1.htm |website=FAS |publisher=Federation of American Scientists (FAS) |access-date=18 October 2019}}</ref>', 368 => '', 369 => '==Outer space treaty==', 370 => 'The US and USSR began discussions on the peaceful uses of space as early as 1958, presenting issues for debate to the [[United Nations]],<ref name="inesap">{{cite web|url=http://www.inesap.org/bulletin17/bul17art22.htm |publisher=International Network of Engineers and Scientists Against Proliferation |date=March 5, 1999|archive-url= https://web.archive.org/web/20080318143550/http://www.inesap.org/bulletin17/bul17art22.htm |archive-date=March 18, 2008| title=Peaceful Uses of Outer Space and International Law|first1=Hans-Joachim |last1=Heintze}}</ref><ref>[https://books.google.com/books?id=r2IfMEpPUIsC&dq=un+resolution+1148&pg=PA289 Google books] ''Nuclear Weapons and Contemporary International Law'' N. Singh, E. WcWhinney (p. 289)</ref><ref>[http://documents-dds-ny.un.org/doc/RESOLUTION/GEN/NR0/747/92/IMG/NR074792.pdf?OpenElement UN website] UN Resolution 1348 (XIII). {{Webarchive|url=https://web.archive.org/web/20151117022148/http://documents-dds-ny.un.org/doc/RESOLUTION/GEN/NR0/747/92/IMG/NR074792.pdf?OpenElement |date=November 17, 2015 }}</ref> which created a [[United Nations Committee on the Peaceful Uses of Outer Space|Committee on the Peaceful Uses of Outer Space]] in 1959.<ref>{{cite web | url = http://www.unoosa.org/oosa/COPUOS/copuos.html | title = United Nations Committee on the Peaceful Uses of Outer Space | publisher = United Nations Office for Outer Space Affairs}}</ref>', 371 => '', 372 => 'On May 10, 1962, Vice President Johnson addressed the Second National Conference on the Peaceful Uses of Space revealing that the United States and the USSR both supported a resolution passed by the Political Committee of the UN General Assembly in December 1962, which not only urged member nations to "extend the rules of international law to outer space," but to also cooperate in its exploration. Following the passing of this resolution, Kennedy commenced his communications proposing a cooperative American and Soviet space program.<ref>[http://www.jfklibrary.org/Asset-Viewer/Archives/JFKNSF-308-006.aspx Papers of John F. Kennedy. Presidential Papers. National Security Files. Subjects. Space activities: US/USSR cooperation, 1961–96]</ref>', 373 => '', 374 => 'The UN ultimately created a ''[[Outer Space Treaty|Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies]]'', which was signed by the United States, the USSR, and the [[United Kingdom]] on January 27, 1967, and came into force the following October 10.<ref>[http://disarmament.un.org/treaties/t/outer_space/signature/asc Treaty on Principles Governing the Activities of States in the Exploration and Use of Outer Space, including the Moon and Other Celestial Bodies: Status of the Treaty] (UNODA)</ref>', 375 => '', 376 => '{{Wikisource|Outer Space Treaty of 1967}}', 377 => 'This treaty:', 378 => '* bars party States from placing [[weapons of mass destruction]] in Earth orbit, on the Moon, or any other celestial body;', 379 => '* exclusively limits the use of the Moon and other celestial bodies to peaceful purposes, and expressly prohibits their use for testing weapons of any kind, conducting military maneuvers, or establishing military bases, installations, and fortifications;', 380 => '* declares that the exploration of outer space shall be done to benefit all countries and shall be free for exploration and use by all the States;', 381 => '* explicitly forbids any government from claiming a celestial resource such as the Moon or a planet, claiming that they are the [[common heritage of mankind]], "not subject to national appropriation by claim of sovereignty, by means of use or occupation, or by any other means". However, the State that launches a space object retains jurisdiction and control over that object;', 382 => '* holds any State liable for damages caused by their space object;', 383 => '* declares that "the activities of non-governmental entities in outer space, including the Moon and other celestial bodies, shall require authorization and continuing supervision by the appropriate State Party to the Treaty", and "States Parties shall bear international responsibility for national space activities whether carried out by governmental or non-governmental entities"; and', 384 => '* "A State Party to the Treaty which has reason to believe that an activity or experiment planned by another State Party in outer space, including the Moon and other celestial bodies, would cause potentially harmful interference with activities in the peaceful exploration and use of outer space, including the Moon and other celestial bodies, may request consultation concerning the activity or experiment."', 385 => '', 386 => 'The treaty remains in force, signed by 107 member states. – {{As of|July 2017}}', 387 => '', 388 => '==Disaster strikes both sides==', 389 => 'In 1967, both nations' space programs faced serious challenges that brought them to temporary halts.', 390 => '', 391 => '===Apollo 1===', 392 => '{{Main|Apollo 1}}', 393 => '[[File:Apollo 1 fire.jpg|thumb|Charred interior of the Apollo 1 spacecraft after the fire that killed the crew]]', 394 => 'On January 27, 1967, the same day the US and USSR signed the Outer Space Treaty, the crew of the first crewed Apollo mission, Command Pilot [[Gus Grissom|Virgil "Gus" Grissom]], Senior Pilot [[Ed White (astronaut)|Ed White]], and Pilot [[Roger Chaffee]], were killed in a fire that swept through their spacecraft cabin during a ground test, less than a month before the planned February 21 launch. An investigative board determined the fire was probably caused by an electrical spark and quickly grew out of control, fed by the spacecraft's atmosphere of pure oxygen at greater than one standard atmosphere. Crew escape was made impossible by inability to open the [[plug door]] hatch cover against the internal pressure.<ref name="sea5"/> The board also found design and construction flaws in the spacecraft, and procedural failings, including failure to appreciate the hazard of the pure-oxygen atmosphere, as well as inadequate safety procedures.<ref name="sea5"/> All these flaws had to be corrected over the next twenty-two months until the first piloted flight could be made.<ref name="sea5">{{cite book| first=Robert C. Jr. |last=Seamans|publisher=NASA History Office|title=Report of Apollo 204 Review Board |chapter=Findings, Determinations And Recommendations|chapter-url=http://www.hq.nasa.gov/pao/History/Apollo204/find.html|date=April 5, 1967 |access-date=October 7, 2007}}</ref>', 395 => 'Mercury and Gemini veteran Grissom had been a favored choice of [[Deke Slayton]], NASA's Director of Flight Crew Operations, to make the first piloted landing.<ref>{{cite book|last1=Slayton|first1=Donald K.|title=Deke!: U.S. Manned Space from Mercury to the Shuttle|author-link1=Deke Slayton|last2=Cassutt|first2=Michael|author-link2=Michael Cassutt|year=1994|page=223|publisher=Forge: St. Martin's Press|location=New York City|isbn=0-312-85503-6|lccn=94-2463|oclc=29845663|url=https://archive.org/details/dekeusmannedspac00slay|quote=It wasn't just a cut-and-dried decision as to who should make the first steps on the Moon. If I had to select on that basis, my first choice would have been Gus, which both [[Christopher C. Kraft, Jr.|Chris Kraft]] and [[Robert R. Gilruth|Bob Gilruth]] seconded.}}</ref>', 396 => '', 397 => '===Soyuz 1===', 398 => '{{Main|Soyuz 1}}', 399 => '[[File:Fallen Astronaut.jpg|thumb|Commemorative plaque and the ''[[Fallen Astronaut]]'' sculpture left on the Moon in 1971 by the crew of [[Apollo 15]] in memory of 14 deceased NASA astronauts and USSR cosmonauts]]', 400 => 'On April 24, 1967, the single pilot of Soyuz 1, [[Vladimir Mikhaylovich Komarov|Vladimir Komarov]], became the first in-flight spaceflight fatality. The mission was planned to be a three-day test, to include the first Soviet docking with an unpiloted [[Soyuz 2]], but the mission was plagued with problems. Early on, Komarov's craft lacked sufficient electrical power because only one of two [[solar panels on spacecraft|solar panels]] had deployed. Then the automatic [[attitude control system]] began malfunctioning and eventually failed completely, resulting in the craft spinning wildly. Komarov was able to stop the spin with the manual system, which was only partially effective. The flight controllers aborted his mission after only one day. During the emergency re-entry, a fault in the landing parachute system caused the primary chute to fail, and the reserve chute became tangled with the drogue chute, causing descent speed to reach as high as 40&nbsp;m/s (140&nbsp;km/h; 89&nbsp;mph). Shortly thereafter, [[Soyuz 1]] impacted the ground 3&nbsp;km (1.9&nbsp;mi) west of Karabutak, exploding into a ball of flames. The official autopsy states Komarov died of blunt force trauma on impact, and that the subsequent heat mutilation of his corpse was a result of the explosive impact. Fixing the spacecraft's faults caused an eighteen-month delay before piloted Soyuz flights could resume.', 401 => '', 402 => '==Both programs recover==', 403 => 'The United States recovered from the Apollo 1 fire, fixing the fatal flaws in an improved version of the [[Apollo Command and Service Module#Major differences between Block I and Block II|Block II command module]]. The US proceeded with unpiloted test launches of the [[Saturn V]] launch vehicle ([[Apollo 4]] and [[Apollo 6]]) and the [[Apollo Lunar Module|Lunar Module]] ([[Apollo 5]]) during the latter half of 1967 and early 1968.{{sfn|Cadbury|2006|pp=310–12, 314–16}} The first Saturn V flight was an unqualified success, and although the second suffered some non-catastrophic engine failures, it was considered a partial success and the launcher achieved human rating qualification. Apollo 1's mission to check out the [[Apollo Command and Service Module]] in Earth orbit was accomplished by Grissom's backup crew on [[Apollo 7]], launched on October 11, 1968.<ref>Burrows (1999), p. 417</ref> The eleven-day mission was a total success, as the spacecraft performed a virtually flawless mission, paving the way for the United States to continue with its lunar mission schedule.{{sfn|Murray|Cox|1990|pp=323–24}}', 404 => '', 405 => 'The Soviet Union also fixed the parachute and control problems with Soyuz, and the next piloted mission [[Soyuz 3]] was launched on October 26, 1968.{{sfn|Hall|Shayler|2003|pp=144-47}} The goal was to complete Komarov's rendezvous and docking mission with the un-piloted Soyuz 2.{{sfn|Hall|Shayler|2003|pp=144-47}} Ground controllers brought the two craft to within {{convert|200|m|ft|sp=us}} of each other, then cosmonaut [[Georgy Beregovoy]] took control.{{sfn|Hall|Shayler|2003|pp=144-47}} He got within {{convert|40|m|ft|sp=us}} of his target, but was unable to dock before expending 90 percent of his maneuvering fuel, due to a piloting error that put his spacecraft into the wrong orientation and forced Soyuz 2 to automatically turn away from his approaching craft.{{sfn|Hall|Shayler|2003|pp=144-47}} The first docking of Soviet spacecraft was finally realized in January 1969 by the [[Soyuz 4]] and [[Soyuz 5]] missions. It was the first-ever docking of two crewed spacecraft, and the first transfer of crew from one space vehicle to another.<ref>{{cite web |title=Soyuz 4 & 5: The First Crew Exchange in Space |url=https://www.drewexmachina.com/2019/01/17/soyuz-4-5-the-first-crew-exchange-in-space/ |website=drewexmachina |date=January 17, 2019 |access-date=24 July 2022}}</ref>', 406 => '', 407 => '[[File:ZOND.jpg|thumb|Soyuz 7K-L1 Zond spacecraft, artist view]]', 408 => 'The Soviet [[Soyuz 7K-L1|Zond spacecraft]] was not yet ready for piloted [[circumlunar]] missions in 1968, after six unsuccessful automated test launches: [[Kosmos 146]] on March 10, 1967; [[Kosmos 154]] on April 8, 1967; [[Zond 1967A]] on September 28, 1967; [[Zond 1967B]] on November 22, 1967; [[Zond 1968A]] on April 23, 1968; and [[Zond 1968B]] in July 1968.<ref name=tent>{{cite web |url=http://nssdc.gsfc.nasa.gov/planetary/tent_launch.html |title=Tentatively Identified Missions and Launch Failures|publisher=NASA NSSDC|first=David R.|last=Williams|access-date=July 30, 2010|date=January 6, 2005}}</ref> [[Zond 4]] was launched on March 2, 1968, and successfully made a circumlunar flight,{{sfn|Siddiqi|2003b|pp=616-618}} but encountered problems with its Earth reentry on March 9, and was ordered destroyed by an explosive charge {{convert|15000|m|ft|sp=us}} over the [[Gulf of Guinea]].{{sfn|Hall|Shayler|2003|p=25}} The Soviet official announcement said that Zond 4 was an automated test flight which ended with its intentional destruction, due to its recovery trajectory positioning it over the Atlantic Ocean instead of over the USSR.{{sfn|Siddiqi|2003b|pp=616-618}}', 409 => '', 410 => '[[File:NASA-Apollo8-Dec24-Earthrise.jpg|alt=|left|thumb|upright|''[[Earthrise]]'', as seen from Apollo&nbsp;8, December 24, 1968 (photograph by astronaut [[William Anders]])]]', 411 => 'During the summer of 1968, the Apollo program hit another snag: the first pilot-rated Lunar Module (LM) was not ready for orbital tests in time for a December 1968 launch. NASA planners overcame this challenge by changing the mission flight order, delaying the first LM flight until March 1969, and sending [[Apollo 8]] into lunar orbit without the LM in December.{{sfn|Kraft|2001|pp=284–97}} This mission was in part motivated by intelligence rumors the Soviet Union might be ready for a piloted Zond flight in late 1968.{{sfn|Chaikin|1994|pp=57–58}} In September 1968, [[Zond 5]] made a circumlunar flight with [[tortoises]] on board and returned safely to Earth, accomplishing the first successful water landing of the Soviet space program in the Indian Ocean.{{sfn|Siddiqi|2003b|pp=654–56}} It also scared NASA planners, as it took them several days to figure out that it was only an automated flight, not piloted, because voice recordings were transmitted from the craft en route to the Moon.{{sfn|Turnhill|2004|p=134}} On November 10, 1968, another automated test flight, [[Zond 6]], was launched. It encountered difficulties in Earth reentry, and depressurized and deployed its parachute too early, causing it to crash-land only {{convert|16|km|mi|sp=us}} from where it had been launched six days earlier.{{sfn|Siddiqi|2003b|pp=663–66}} It turned out there was no chance of a piloted Soviet circumlunar flight during 1968, due to the unreliability of the Zonds.{{sfn|Cadbury|2006|pp=318–19}}', 412 => '', 413 => 'On December 21, 1968, [[Frank Borman]], [[Jim Lovell|James Lovell]], and [[William Anders]] became the first humans to ride the [[Saturn V]] rocket into space, on Apollo 8. They also became the first to leave low-Earth orbit and go to another celestial body, entering lunar orbit on December 24.{{sfn|Poole|2008|pp=19–34}} They made ten orbits in twenty hours, and transmitted one of the most watched TV broadcasts in history, with their [[Apollo 8 Genesis reading|Christmas Eve program]] from lunar orbit, which concluded with a reading from the biblical [[Book of Genesis]].{{sfn|Poole|2008|pp=19–34}} Two and a half hours after the broadcast, they fired their engine to perform the first [[trans-Earth injection]] to leave lunar orbit and return to the Earth.{{sfn|Poole|2008|pp=19–34}} Apollo 8 safely landed in the Pacific Ocean on December 27, in NASA's first dawn splashdown and recovery.{{sfn|Poole|2008|pp=19–34}}', 414 => '', 415 => 'The American Lunar Module was finally ready for a successful piloted test flight in low Earth orbit on [[Apollo 9]] in March 1969. The next mission, [[Apollo 10]], conducted a "dress rehearsal" for the first landing in May 1969, flying the LM in lunar orbit as close as {{convert|47400|ft|km}} above the surface, the point where the powered descent to the surface would begin.<ref name="chariots12-7">{{cite book |last1=Brooks |first1=Courtney G. |last2=Grimwood |first2=James M. |last3=Swenson |first3=Loyd S. Jr. |others=Foreword by [[Samuel C. Phillips]] |title=Chariots for Apollo: A History of Manned Lunar Spacecraft |url=http://www.hq.nasa.gov/office/pao/History/SP-4205/cover.html |access-date=January 29, 2008 |series=NASA History Series |year=1979 |publisher=Scientific and Technical Information Branch, NASA |location=Washington, D.C. |isbn=978-0-486-46756-6 |oclc=4664449 |lccn=79001042 |id=NASA SP-4205 |chapter=''Apollo 10:'' The Dress Rehearsal |chapter-url=http://www.hq.nasa.gov/office/pao/History/SP-4205/ch12-7.html |archive-date=October 20, 2015 |archive-url=https://web.archive.org/web/20151020095653/http://www.hq.nasa.gov/office/pao/History/SP-4205/cover.html |url-status=dead }}</ref> With the LM proven to work well, the next step was to attempt the landing.', 416 => '', 417 => 'Unknown to the Americans, the Soviet Moon program was in deep trouble.{{sfn|Cadbury|2006|pp=318–19}} After two successive launch failures of the [[N1 (rocket)|N1 rocket]] in 1969, Soviet plans for a piloted landing suffered delay.{{sfn|Siddiqi|2003b|pp=665, 832–34}} The launch pad explosion of the [[N1 (rocket)|N-1]] on July 3, 1969, was a significant setback.{{sfn|Siddiqi|2003b|pp=690–93}} The rocket hit the pad after an engine shutdown, destroying itself and the launch facility.{{sfn|Siddiqi|2003b|pp=690–93}} Without the N-1 rocket, the USSR could not send a large enough payload to the Moon to land a human and return him safely.{{sfn|Parry|2009|pp=178–79}}', 418 => '', 419 => '==First humans on the Moon==', 420 => '{{Main|Apollo 11}}', 421 => '[[File:Neil Armstrong pose.jpg|thumb|upright|[[Neil Armstrong]], the first person to walk on the Moon, 1969]]', 422 => 'Apollo 11 was prepared with the goal of a July landing in the [[Sea of Tranquility]].{{sfn|Parry|2009|pp=144–51}} The crew, selected in January 1969, consisted of commander (CDR) [[Neil Armstrong]], Command Module Pilot (CMP) [[Michael Collins (astronaut)|Michael Collins]], and Lunar Module Pilot (LMP) [[Buzz Aldrin|Edwin "Buzz" Aldrin]].{{sfn|Chaikin|1994|p=138}} They trained for the mission until just before the launch day.{{sfn|Chaikin|1994|pp=163–83}} On July 16, 1969, at 9:32&nbsp;am [[Eastern Time Zone|EDT]], the Saturn V rocket, AS-506, lifted off from [[Kennedy Space Center Launch Complex 39]] in Florida.{{sfn|Parry|2009|pp=38–44}}', 423 => '', 424 => 'The trip to the Moon took just over three days.<ref>{{cite web', 425 => '|last=Jones', 426 => '|first=Eric M.', 427 => '|url=http://www.hq.nasa.gov/alsj/a11/Apollo11_Press-Kit_restored.pdf', 428 => '|title=Apollo 11 Press Kit', 429 => '|page=33', 430 => '|work=Apollo Lunar Surface Journal', 431 => '|date=January 1, 2010', 432 => '|access-date=August 15, 2010}}</ref> After achieving orbit, Armstrong and Aldrin transferred into the [[Apollo Lunar Module|Lunar Module]] named ''[[Lunar Module Eagle|Eagle]]'', leaving Collins in the [[Apollo command and service module|Command and Service Module]] ''[[Command module Columbia|Columbia]]'', and began their descent. Despite the interruption of alarms from an overloaded [[Apollo Guidance Computer|computer]] caused by an antenna switch left in the wrong position, Armstrong took over manual flight control at about {{convert|180|m|ft|sp=us}} to correct a slight downrange guidance error, and set the ''Eagle'' down on a safe [[Tranquility Base|landing spot]] at 20:18:04 [[Universal Coordinated Time|UTC]], July 20, 1969 (3:17:04&nbsp;pm [[Central Time Zone#Central Daylight Time|CDT]]). Six hours later, at 02:56 UTC, July 21 (9:56&nbsp;pm CDT July 20), Armstrong left the ''Eagle'' to become the first human to set foot on the Moon.{{sfn|Murray|Cox|1990|p=356}}', 433 => '', 434 => '{{listen|filename=Neil Armstrong small step.wav|title=Neil Armstrong's historic first words on the Moon.|description="That's one small step for [a] man, one giant leap for mankind."|format=[[Ogg]]}}', 435 => 'The first step was witnessed on live television by at least one-fifth of the population of Earth, or about 723 million people.<ref>{{cite web|url=http://www.museum.tv/eotvsection.php?entrycode=spaceprogram|title=Space Program and television|publisher=The Museum of Broadcast Communications|last=Paterson|first=Chris|year=2010|access-date=August 11, 2010|archive-date=December 4, 2010|archive-url=https://web.archive.org/web/20101204055730/http://www.museum.tv/eotvsection.php?entrycode=spaceprogram|url-status=dead}}</ref> His first words when he stepped off the LM's landing footpad were, "That's one small step for [a] man, one giant leap for mankind."{{sfn|Murray|Cox|1990|p=356}} Aldrin joined him on the surface almost 20 minutes later.<ref>{{cite web', 436 => '|last=Jones', 437 => '|first=Eric M.', 438 => '|url=http://www.hq.nasa.gov/alsj/a11/a11.html', 439 => '|title=Apollo 11 Lunar Surface Journal', 440 => '|page=MET 109:43:16', 441 => '|work=Apollo Lunar Surface Journal', 442 => '|date=January 1, 2010', 443 => '|access-date=August 15, 2010}}</ref> Altogether, they spent just under two and one-quarter hours outside their craft.<ref>{{cite web', 444 => '|last=Jones', 445 => '|first=Eric M.', 446 => '|url=http://www.hq.nasa.gov/alsj/a11/a11.html', 447 => '|title=Apollo 11 Lunar Surface Journal', 448 => '|work=Apollo Lunar Surface Journal', 449 => '|date=January 1, 2010', 450 => '|access-date=August 15, 2010}} Mission elapsed time (MET) from when Armstrong states that he will step off the LM at 109hrs:24mins:13secs to when Armstrong was back inside the LM at 111hrs:38mins:38sec</ref> The next day, they performed the first launch from another celestial body, and rendezvoused back with Collins in ''Columbia''.{{sfn|Parry|2009|pp=250–51}}', 451 => '', 452 => 'Apollo 11 left lunar orbit and returned to Earth, landing safely in the Pacific Ocean on July 24, 1969.{{sfn|Parry|2009|pp=252–62}} When the spacecraft splashed down, 2,982 days had passed since Kennedy's commitment to landing a man on the Moon and returning him safely to the Earth before the end of the decade; the mission was completed with 161 days to spare.{{sfn|Murray|Cox|1990|p=347}} With the safe completion of the Apollo 11 mission, the Americans won the race to the Moon.{{sfn|Schefter|1999|p=288}}', 453 => '', 454 => 'Armstrong and his crew became worldwide celebrities, feted with [[ticker-tape parade]]s on August 13 in New York City and Chicago, attended by an estimated six million.<ref name="LADinner">{{cite web |title=Richard Nixon: Remarks at a Dinner in Los Angeles Honoring the Apollo 11 Astronauts |url=https://www.presidency.ucsb.edu/documents/remarks-dinner-los-angeles-honoring-the-apollo-11-astronauts |website=The American Presidency Project |access-date=October 24, 2017 |date=August 13, 1969}}</ref><ref>{{cite news|url=https://www.newspapers.com/clip/27531303/the_evening_sun/|title=President Offers Toast to 'Three Brave Men'|newspaper=The Evening Sun|date=August 14, 1969|page=1|location=Baltimore, Maryland|via=Newspapers.com|agency=Associated Press}}</ref> That evening in Los Angeles they were honored at an official [[state dinner]] attended by members of Congress, 44 governors, the [[Chief Justice of the United States]], and ambassadors from 83 nations. The President and Vice president presented each astronaut with the [[Presidential Medal of Freedom]].<ref name="LADinner" /><ref>{{cite news|url=https://www.newspapers.com/clip/27531557/the_honolulu_advertiser/|title=Astronauts Awed by the Acclaim|newspaper=The Honolulu Advertiser|location=Honolulu, Hawaii|page=1|date=August 14, 1969|last1=Smith|first1=Merriman|agency=UPI|via=Newspapers.com}}</ref> The astronauts spoke before a [[joint session of the United States Congress|joint session of Congress]] on September 16, 1969.<ref>{{cite web |url=http://history.house.gov/HistoricalHighlight/Detail/35693 |title=The Apollo 11 Crew Members Appear Before a Joint Meeting of Congress|access-date=March 3, 2018 |publisher=United States House of Representatives}}</ref> This began a 38-day world tour to 22 foreign countries and included visits with the leaders of many countries.<ref name="Apollo 11 Crew Starts World Tour">{{cite news|url=https://www.newspapers.com/clip/27494178/the_logan_daily_news/|title=Apollo 11 Crew Starts World Tour|agency=Associated Press|date=September 29, 1969|page=1|location=Logan, Ohio|newspaper=Logan Daily News|via=Newspapers.com}}</ref>', 455 => '', 456 => 'The public's reaction in the Soviet Union was mixed. The Soviet government limited the release of information about the lunar landing, which affected the reaction. A portion of the populace did not give it any attention, and another portion was angered by it.<ref>{{cite magazine|url=https://www.scientificamerican.com/article/apollo-moon-khrushchev/|title=The Moon Landing through Soviet Eyes: A Q&A with Sergei Khrushchev, son of former premier Nikita Khrushchev|magazine=Scientific American|date=July 16, 2009|access-date=January 7, 2019|last1=Das|first1=Saswato R.|archive-date=February 25, 2021|archive-url=https://web.archive.org/web/20210225085952/http://www.scientificamerican.com/article/apollo-moon-khrushchev/|url-status=live}}</ref>', 457 => '', 458 => 'The first landing was followed by another, precision landing on [[Apollo 12]] in November 1969, within walking distance of the [[Surveyor 3]] spacecraft which landed on April 20, 1967.', 459 => '', 460 => '==Competition ramps down==', 461 => '[[File:NASA Apollo 17 Lunar Roving Vehicle.jpg|thumb|right|[[Eugene Cernan]] rides the [[Lunar Roving Vehicle]] during [[Apollo 17]], December 1972.]]', 462 => 'NASA had ambitious follow-on human spaceflight plans as it reached its lunar goal but soon discovered it had expended most of its political capital to do so.{{sfn|Hepplewhite|1999|p=186}} A victim of its own success, Apollo had achieved its first landing goal with enough spacecraft and Saturn V launchers left for a total of ten lunar landings through Apollo 20, conducting extended-duration missions and transporting the landing crews in [[Lunar Roving Vehicle]]s on the last five. NASA also planned an [[Apollo Applications Program]] (AAP) to develop a longer-duration Earth orbital workshop (later named ''[[Skylab]]'') from a spent [[S-IVB]] upper stage, to be constructed in orbit using several launches of the smaller [[Saturn IB]] launch vehicle.', 463 => '', 464 => 'In February 1969, President [[Richard M. Nixon]] convened a "[[National Space Council|space task group]]" to set recommendations for the future US civilian space program, headed by his vice president, [[Spiro T. Agnew]].{{sfn|Hepplewhite|1999|p=123}} Agnew was an enthusiastic proponent of NASA's follow-up plans for permanent [[space station]]s in Earth and lunar orbit, perhaps a base on the lunar surface, and the first human flight to Mars as early as 1986 or as late as 2000.{{sfn|Hepplewhite|1999|pp=136–50}} These would be serviced by an infrastructure of a reusable [[Space Transportation System]], including an Earth-to-orbit [[Space Shuttle]]. [[Nixon]] had a better sense of the declining political support in Congress for new Apollo-style programs, which had disappeared with the achievement of the landing, and he intended to pursue détente with the USSR and China, which he hoped might ease Cold War tensions. He cut the spending proposal he sent to Congress to include funding for only the Space Shuttle, with perhaps an option to pursue the Earth orbital space station for the foreseeable future.{{sfn|Hepplewhite|1999|pp=150–77}}', 465 => '', 466 => 'AAP planners decided the Earth orbital workshop could be accomplished more efficiently by prefabricating it on the ground and launching it with a single Saturn V, which immediately eliminated Apollo 20. Budget cuts soon led NASA to cut Apollo 18 and 19 as well. [[Apollo 13]] had to abort its lunar landing in April 1970 due to an in-flight spacecraft failure but returned its crew safely to Earth. The Apollo program made its [[Apollo 17|final]] lunar landing in December 1972; the two unused Saturn Vs were used as outdoor visitor displays and allowed to deteriorate due to the effects of weathering.', 467 => '', 468 => 'The USSR continued trying to develop its N1 rocket, after two more launch failures in 1971 and 1972, finally canceling it in May 1974, without achieving a single successful uncrewed test flight.{{sfn|Portree|1995|p=5}}', 469 => '', 470 => '===Salyuts and ''Skylab''===', 471 => '[[File:The Soviet Union 1971 CPA 4060 stamp (Cosmonauts Georgy Dobrovolsky, Vladislav Volkov and Viktor Patsayev).jpg|thumb|right|The Soyuz 11 crew with the Salyut station in the background, in a Soviet commemorative stamp]]', 472 => 'Having lost the race to the Moon, the USSR decided to concentrate on orbital space stations. During 1969 and 1970, they launched six more Soyuz flights after Soyuz 3 and then launched a series of six successful [[space station]]s (plus two failures to achieve orbit and one station rendered uninhabitable due to damage from explosion of the launcher's upper stage) on their [[Proton-K]] heavy-lift launcher in their [[Salyut programme|Salyut program]] designed by [[Kerim Kerimov]]. Each one weighed between {{convert|18500|and|19824|kg|lb}}, was {{convert|20|m|ft|sp=us}} long by {{convert|4|m|ft|sp=us}} in diameter, and had a habitable volume of {{convert|99|m3|ft3|sp=us}}. All of the Salyuts were presented to the public as non-military scientific laboratories, but three of them were covers for military [[Almaz]] reconnaissance stations: [[Salyut 2]] (failed),<ref>{{cite web |url=http://www.russianspaceweb.com/almaz_ops1.html |publisher=Russian Space Web |title=Salyut 2 |access-date=6 July 2012 }}</ref> [[Salyut 3]],<ref name=astrospies>{{cite web |url=https://www.pbs.org/wgbh/nova/astrospies/ |title=Astrospies |author=James Bamford |publisher=PBS Nova |access-date=6 July 2012}}</ref> and [[Salyut 5]].{{cn|date=April 2023}}', 473 => '', 474 => '[[Salyut 1]], the first space station, was launched by the Soviets on April 19, 1971. Three days later, the [[Soyuz 10]] crew attempted to dock with it, but failed to achieve a secure enough connection to safely enter the station. The [[Soyuz 11]] crew of [[Vladislav Volkov]], [[Georgi Dobrovolski]] and [[Viktor Patsayev]] successfully docked on June 7, and completed a record 22-day stay. The crew became the second in-flight space fatality during their reentry on June 30. They were [[asphyxiated]] when their spacecraft's cabin lost all pressure, shortly after undocking. The disaster was blamed on a faulty cabin pressure valve, that allowed all the air to vent into space. The crew was not wearing pressure suits and had no chance of survival once the leak occurred.<ref name="part">{{cite web|url=https://history.nasa.gov/SP-4209/ch8-2.htm|title=The Partnership: A History of the Apollo-Soyuz Test Project|access-date=20 October 2007|publisher=NASA|year=1974|quote=When the valve opened at a height of 168 kilometers, the gradual but steady loss of pressure was fatal to the crew within about 30 seconds.|archive-url=https://web.archive.org/web/20070823124845/https://history.nasa.gov/SP-4209/ch8-2.htm |archive-date=23 August 2007}}</ref>', 475 => '', 476 => 'The United States launched a single orbital workstation, ''[[Skylab]]'', on May 14, 1973. It weighed {{convert|169950|lb|kg}}, was {{convert|58|ft|m|sp=us}} long by {{convert|21.7|ft|m|sp=us}} in diameter, and had a habitable volume of {{convert|10000|ft3|m3|sp=us}}. ''Skylab'' was damaged during the ascent to orbit, losing one of its solar panels and a meteoroid thermal shield. Subsequent crewed missions repaired the station, and the third and final mission's crew, [[Skylab 4]], set a human endurance record (at the time) with 84 days in orbit when the mission ended on February 8, 1974. ''Skylab'' stayed in orbit another five years before reentering the Earth's atmosphere over the Indian Ocean and Western Australia on July 11, 1979.<ref name="lewis1984">{{cite book|title=The Voyages of Columbia: The First True Spaceship|publisher=Columbia University Press|last=Lewis|first=Richard S.|year=1984', 477 => '|url=https://books.google.com/books?id=v0cG1SdLkP0C|isbn=0-231-05924-8|pages=80–82|via=Google Books}}</ref>', 478 => '', 479 => '[[Salyut 4]] broke ''Skylab'''s occupation record at 92 days. [[Salyut 6]] and [[Salyut 7]] were second-generation stations designed for long duration, and were occupied for 683 and 816 days.', 480 => '', 481 => '===Apollo–Soyuz Test Project===', 482 => '{{Main|Apollo-Soyuz Test Project}}', 483 => '[[File:Portrait of ASTP crews - restoration.jpg|thumb|left|alt= the five crew members of ASTP sitting around a miniature model of their spacecraft|Apollo-Soyuz crew: From left to right: [[Deke Slayton|Donald "Deke" Slayton]], [[Thomas Patten Stafford]], [[Vance Brand]], [[Alexei Leonov]], and [[Valeri Kubasov]]]]', 484 => '[[File:ASTP handshake - cropped.jpg|thumb|right|American Stafford and Russian Leonov shake hands in space aboard the [[Apollo–Soyuz]] docking adapter.]]', 485 => 'In May 1972, President [[Richard M. Nixon]] and Soviet [[Premier of the Soviet Union|Premier]] [[Leonid Brezhnev]] negotiated an easing of relations known as [[détente]], creating a temporary "thaw" in the Cold War. The two nations planned a joint mission to dock the last US Apollo craft with a Soyuz, known as the [[Apollo-Soyuz Test Project]] (ASTP). To prepare, the US designed a docking module for the Apollo that was compatible with the Soviet docking system, which allowed any of their craft to dock with any other (e.g. Soyuz-to-Soyuz as well as Soyuz-to-Salyut). The module was also necessary as an airlock to allow the men to visit each other's craft, which had incompatible cabin atmospheres. The USSR used the [[Soyuz 16]] mission in December 1974 to test modifications of the Soyuz atmosphere and the docking adapter to prepare for ASTP.<ref name=clark>{{cite book|title=The Soviet Manned Space Program|url=https://archive.org/details/sovietmannedspac0000clar|url-access=registration|year=1988|isbn=0-517-56954-X|publisher=Orion Books, a division of Crown Publishers, Inc.|last=Clark|first=Phillip |location=New York}}</ref><ref name=newkirk>{{cite book|last=Newkirk |first=Dennis|title=Almanac of Soviet Manned Space Flight|year=1990|isbn=0-87201-848-2|publisher=Gulf Publishing Company|location=Houston, Texas}}</ref>', 486 => '', 487 => 'The joint mission began when [[Soyuz 19]] was first launched on July 15, 1975, at 12:20 [[UTC]], and the Apollo craft was launched with the docking module six and a half hours later. The two craft rendezvoused and docked on July 17 at 16:19 [[UTC]]. The three astronauts conducted joint experiments with the two cosmonauts, and the crew shook hands, exchanged gifts, and visited each other's craft.<ref>{{cite web|url=https://history.nasa.gov/SP-4209/ch11-3.htm|title=The Partnership: A History of the Apollo–Soyuz Test Project|author1=Edward Clinton Ezell|author2=Linda Neuman Ezell|year=1978|publisher=NASA|access-date=4 May 2011|archive-url=https://web.archive.org/web/20110524064713/https://history.nasa.gov/SP-4209/ch11-3.htm|archive-date=May 24, 2011|url-status=live}}</ref>', 488 => '', 489 => '===Space Shuttles===', 490 => '[[File:Soyuz, Space Shuttle, Buran comparison.svg|thumb|Soyuz, US Space Shuttle, and Energia-Buran]]', 491 => 'NASA achieved the first approach and landing test of its [[Space Shuttle orbiter]] on a [[Shuttle Carrier Aircraft|Boeing 747 carrier plane]] on August 12, 1977, and the [[STS-1|first orbital test flight]] of a complete, crewed [[Space Shuttle]], consisting of the orbiter, an [[external tank|external fuel tank]], and two [[Space Shuttle Solid Rocket Boosters|solid rocket boosters]], on April 12, 1981. The designers underestimated the time and cost of refurbishment between flights, which reduced the cost benefit of its reusability. They also overestimated its safety: two of the fleet of five orbiters were lost in fatal flight accidents: one during launch, due to failure of a solid rocket booster seal; and one on reentry, due to launch damage of a wing heat shield. The Air Force was also supposed to use the Shuttle to launch its military payloads, but shunned it in favor of its expendable launchers after the first Shuttle loss. NASA ceased production of its [[Apollo Command and Service Module|Apollo spacecraft]] and [[Saturn IB]] launcher, and used the Shuttle as its orbital workhorse until [[STS-135|2011]], then [[Retirement of the Space Shuttle|retired]] it due to the safety concern. Originally, more than 150 flights over a 15-year operation were expected; actually, the Shuttle made 135 flights in its 30-year lifespan.', 492 => '', 493 => 'The Soviets mistook the Shuttle as a military surveillance vehicle and decided they had to develop their own shuttle, which they named [[Buran programme|Buran]], beginning in 1974. They copied the aerodynamic design of NASA's Shuttle orbiter, which they strapped to the side of their expendable, [[liquid rocket propellant#Hydrogen|liquid hydrogen-fueled]] [[Energia (rocket)|Energia launcher]]. The Buran could be fitted with four [[Saturn AL-31]] [[turbofan]] engines and a fuel tank in its payload bay, allowing it to make its own atmospheric test flights, which began in November 1985. Also unlike the US Shuttle, it could be flown pilotlessly and landed automatically. Energia-Buran made only one orbital test flight in November 1988, but US [[counterintelligence]] baited the Soviets with disinformation about the heat shield design, and it was not reusable for repeated flight.<ref>{{cite news|url=https://www.nbcnews.com/id/wbna18686550 |title=How the Soviet space shuttle fizzled|date=February 11, 2008|publisher=NBC News|access-date=January 8, 2023}}</ref> Buran was the largest and most expensive Soviet program in the history of the Space Race,<ref name="harvey">{{cite book |url=https://books.google.com/books?id=kmTz6Phf5WYC&pg=PA8 |title=The Rebirth of the Russian Space Program: 50 Years After Sputnik, New Frontiers |publisher=Springer |first=Brian |last=Harvey |year=2007 |page=8 |isbn=978-0-38-771356-4 |access-date=9 February 2016 |archive-date=24 June 2016 |archive-url=https://web.archive.org/web/20160624065603/https://books.google.com/books?id=kmTz6Phf5WYC&pg=PA8 |url-status=live }}</ref> and was effectively canceled by the [[collapse of the Soviet Union]] in 1991, due to lack of funding. The Energia was also canceled at the same time, after only two flights.', 494 => '', 495 => '===First professional women in space===', 496 => 'The first woman in space was from the Soviet Union, [[Valentina Tereshkova]]. NASA did not welcome female astronauts into its corps until 1978, when six female [[mission specialist]]s were recruited. This first class included scientist [[Sally Ride]], who became America's first woman in space on [[STS-7]] in June 1983. NASA included women mission specialists in the next four astronaut candidate classes, and admitted female pilots starting in 1990. [[Eileen Collins]] from this class became the first pilot to fly on Space Shuttle flight [[STS-63]] in February 1995, and the first female commander of a spaceflight on [[STS-93]] in July 1999.', 497 => '', 498 => 'The USSR admitted its first female test pilot as a cosmonaut, [[Svetlana Savitskaya]], in 1980. She became the first female to fly since Tereshkova, on [[Salyut 7]] in December 1981.', 499 => '', 500 => '===First modular space station===', 501 => '', 502 => 'The USSR turned its space program to the development of the [[low Earth orbit]] modular space station ''[[Mir]]'' (''peace'' or ''world'') assembled in orbit from 1986 to 1996. At {{convert|129700|kg|lb}}, it held records for the largest spacecraft and the longest continuous human presence in space at 3,644 days, until the [[International Space Station]] was built starting in 1998.<ref name="Mirrecord">{{cite news|last=Jackman|first=Frank|title=ISS Passing Old Russian Mir In Crewed Time|url=http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=space&id=news/asd/2010/10/28/11.xml|newspaper=Aviation Week|date=29 October 2010}}{{Dead link|date=August 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> ''Mir'''s operation continued after the 1991 replacement of the USSR's space program with the [[Russian Federal Space Agency]] until 2001, supported by Soyuz spacecraft.', 503 => '', 504 => '==Legacy==', 505 => '[[File:Atlantis docked to MIR - GPN-2000-001315.jpg|250px|thumb|[[Space Shuttle]] (US) docked to [[Mir]] (USSR/Russia) (1995), both products of the ending competition, joined in the [[Shuttle-Mir program]] (1993–1998) which facilitated the ongoing [[International Space Station programme]].]]', 506 => '', 507 => 'After the end of the [[Cold War]] in 1991, the assets of the USSR's space program passed mainly to Russia. Since then, the United States and Russia have cooperated in space with the [[Shuttle–Mir Program|Shuttle-''Mir'' Program]], and the [[International Space Station]] (ISS).<ref>{{Cite web|url=https://www.txstate-epdc.net/international-cooperation-on-the-iss/|title=International Cooperation on the ISS|date=November 1, 2019|website=Texas State University|language=en-US|access-date=January 15, 2020}}</ref>', 508 => '', 509 => '[[File:International Space Station after undocking of STS-132.jpg|thumb|International Space Station in 2010]]', 510 => '', 511 => 'The Russians continue to use their [[R-7 (rocket family)|R-7 rocket family]] as their orbital workhorse to launch the Soyuz crewed spacecraft and its [[Progress (spacecraft)|Progress]] derivative uncrewed cargo craft as shuttles to the ISS. After the 2011 retirement of the Space Shuttle, American crews were dependent on the R-7–Soyuz to reach the ISS,<ref name="Chow">{{cite web|url=http://www.space.com/13664-nasa-future-space-exploration-progress.html|title=U.S. Human Spaceflight Program Still Strong, NASA Chief Says|last=Chow|first=Denise|date=November 17, 2011|publisher=Space.com|access-date=July 2, 2012}}</ref> until the 2020 first flight of the US [[Crew Dragon]] [[Commercial Crew Development]] vehicle.', 512 => '', 513 => '==See also==', 514 => '{{colbegin}}', 515 => '* [[Billionaire space race]]', 516 => '* [[Cold War]]', 517 => '* [[Arms race]]', 518 => '* [[Cold War playground equipment]]', 519 => '* [[History of spaceflight]]', 520 => '* [[List of space exploration milestones, 1957–1969]]', 521 => '* [[Moon landing]]', 522 => '* [[Moon Shot]]', 523 => '* [[Space advocacy]]', 524 => '* [[Space exploration]]', 525 => '* [[Space policy]]', 526 => '* [[Space propaganda]]', 527 => '* [[Spaceflight records]]', 528 => '* [[SEDS]]', 529 => '* [[Timeline of Solar System exploration]]', 530 => '* [[Timeline of space exploration]]', 531 => '* [[Woods Hole Conference]]', 532 => '* [[Mars race]]', 533 => '* '''''<small>{{portal-inline|Space}}</small>'''''', 534 => '* '''''<small>{{portal-inline|Spaceflight}}</small>'''''', 535 => '* '''''<small>{{portal-inline|World}}</small>'''''', 536 => '{{colend}}', 537 => '', 538 => '==References==', 539 => '{{reflist}}', 540 => '', 541 => '==References==', 542 => '* {{cite book |title=Stages to Saturn: A Technological History of the Apollo/Saturn Launch Vehicles |last= Bilstein |first= Roger E. |year= 1996 |publisher= Scientific and Technical Information Branch, National Aeronautics and Space Administration |location= Washington |isbn= 0-16-048909-1 |url= https://books.google.com/books?id=RUIjAAAAMAAJ}}', 543 => '*{{cite book|url=https://books.google.com/books?id=rrdVPtCNL9AC|title=The First Soviet Cosmonaut Team|last1=Burgess|first1=Colin|last2=Hall|first2=Rex|publisher=Praxis Publishing|location=Chichester, UK|lccn=2008935694|isbn=978-0-387-84824-2|year=2009}}', 544 => '* {{cite book |title= Fallen Astronauts: Heroes Who Died Reaching for the Moon |last=Burgess |first= Colin |author2=Kate Doolan |author3=Bert Vis |year= 2003 |publisher= University of Nebraska Press', 545 => ' |location= Lincoln |isbn= 0-8032-6212-4 |url=https://books.google.com/books?id=iJ8WwRBNgk0C }}', 546 => '* {{Cite book | last1 =Brzezinski | first1= Matthew |title= Red Moon Rising: Sputnik and the Hidden Rivalries that Ingnited the Space Race |year=2007 |publisher= Times Books, Henry Holt and Company |location= New York |isbn= 978-0-8050-8147-3}}', 547 => '* {{cite book |title= This New Ocean: The Story of the First Space Age |last1= Burrows |first1= William E. |year= 1998 |publisher= [[Random House]] |location= New York |isbn= 978-0-679-44521-0}}', 548 => '* {{cite book |last1=Cadbury |first1= Deborah |title= Space Race: The Epic Battle Between America and the Soviet Union for Dominance of Space |url=https://archive.org/details/spaceraceepicbat00cadb |year= 2006 |publisher= Harper Collins Publishers |location= New York |isbn= 978-0-06-084553-7 |url-access= registration}}', 549 => '* {{Cite book | last1 =Chaikin | first1 = Andrew |title= A Man on the Moon: The Triumphant Story of the Apollo Space Program |year=1994 |publisher= [[Penguin Books]] |location= New York |isbn= 0140272011}}', 550 => '* {{cite book |last1=Chertok |first1=Boris |title=Rockets and People Volumes 1-4 |date=2005 |publisher=National Aeronautics and Space Administration |url=https://www.nasa.gov/connect/ebooks/rockets_people_vol1_detail.html |access-date=29 May 2022}}', 551 => '* {{cite book', 552 => ' |title= Hitler's Scientists: Science, War, and the Devil's Pact', 553 => ' |last= Cornwell', 554 => ' |first= John', 555 => ' |year= 2003', 556 => ' |publisher= [[Viking Press]]', 557 => ' |location= New York', 558 => ' |isbn= 0-670-03075-9', 559 => ' |url= https://archive.org/details/hitlersscientist00corn', 560 => ' }}', 561 => '* {{cite book', 562 => ' |title= An Unfinished Life: John F. Kennedy, 1917–1963', 563 => ' |last= Dallek', 564 => ' |first= Robert', 565 => ' |year= 2003', 566 => ' |publisher= [[Little, Brown and Company]]', 567 => ' |location= Boston', 568 => ' |isbn= 0-316-17238-3', 569 => ' |url= https://archive.org/details/unfinishedlifejo00dall_0', 570 => ' }}', 571 => '* {{cite book|first1=David|last1=Leonard|title=Moon Rush|url=https://www.simonandschuster.co.uk/books/Moon-Rush/Leonard-David/9781426220050|publisher=Simon and Schuster|date=2019|isbn=9781426220050|access-date=January 8, 2023|archive-date=January 8, 2023|archive-url=https://web.archive.org/web/20230108200457/https://www.simonandschuster.co.uk/books/Moon-Rush/Leonard-David/9781426220050|url-status=dead}}', 572 => '* {{cite book |title=Arrows to the Moon: Avro's Engineers and the Space Race |last1=Gainor |first1=Chris |year=2001 |publisher=Apogee Books |location=Burlington, Ontario |isbn=1-896522-83-1 |url=https://archive.org/details/arrowstomoonavro0000gain |url-status=dead |access-date=August 2, 2019 |archive-url=https://web.archive.org/web/20080723213816/http://www.space.com/spacelibrary/books/library_gainor_020125.html |archive-date=July 23, 2008 }}', 573 => '* {{cite book | first1 = Kenneth | last1 = Gatland | title = Manned Spacecraft, Second Revision | place = New York | publisher = Macmillan Publishing Co., Inc | year = 1976 | isbn = 0-02-542820-9}}', 574 => '* {{cite book |title= The Rocket Men: Vostok & Voskhod, The First Soviet Manned Spaceflights |last1= Hall |first1= Rex |last2=Shayler |first2=David J. |year= 2001 |publisher= [[Springer Science+Business Media|Springer–Praxis Books]] |location= New York |isbn= 1-85233-391-X |url= https://books.google.com/books?id=zndYLKa26wAC}}', 575 => '* {{cite book |title= Soyuz: A Universal Spacecraft |last1= Hall |first1= Rex |last2=Shayler |first2=David J. |year= 2003 |publisher= [[Springer Science+Business Media|Springer–Praxis Books]] |location= New York |isbn= 1-85233-657-9 |url= https://books.google.com/books?id=dbGchpi1HP8C}}', 576 => '* {{cite book |last1= Hardesty |first1= Von |last2=Eisman |first2=Gene|others= Foreword by Sergei Khrushchev |title= Epic Rivalry: The Inside Story of the Soviet and American Space Race |year= 2007 |publisher= [[National Geographic Society]] |location= Washington |isbn= 978-1-4262-0119-6 |url-access= registration |url= https://archive.org/details/epicrivalryinsid0000hard }}', 577 => '* {{cite book |title= Korolev: How One Man Masterminded the Soviet Drive to Beat America to the Moon |last1= Harford |first1= James J. |edition= 1 |year= 1997 |publisher= John Wiley & Sons |location= New York |isbn= 0-471-14853-9 }}', 578 => '* {{cite book |title= The Space Shuttle Decision: NASA's Search for a Reusable Space Vehicle |last1= Hepplewhite |first1= T.A. |year= 1999 |publisher= NASA |location= Washington, DC |url= https://history.nasa.gov/SP-4221/sp4221.htm}}', 579 => '* {{cite web', 580 => ' |last=Jones', 581 => ' |first=Eric M.', 582 => ' |url=http://www.hq.nasa.gov/alsj/a11/a11.html', 583 => ' |title=Apollo 11 Lunar Surface Journal', 584 => ' |work=Apollo Lunar Surface Journal', 585 => ' |location= Internet', 586 => ' |date=January 1, 2010', 587 => ' |access-date=August 15, 2010', 588 => '}}', 589 => '* {{cite book |title= Flight: My Life in Mission Control |last1=Kraft|first1= Christopher C.|year= 2001 |publisher= Dutton |location= New York |isbn= 0-525-94571-7 |url= https://archive.org/details/flight00chri}}', 590 => '* {{cite book |title= Apollo: The Race to the Moon |last1= Murray |first1= Charles |author-link= Charles Murray (political scientist) |last2=Cox|first2=Catherine Bly|year= 1990 |publisher= Touchstone ([[Simon & Schuster]]) |location= New York |isbn= 0-671-70625-X |quote= The link is to the 2004 edition, pages differ, but content the same.}}', 591 => '* {{cite book |title= Moonshot: The Inside Story of Mankind's Greatest Adventure |last1= Parry |first1= Dan |year= 2009 |publisher = [[Ebury Publishing|Ebury Press]] |location= Chatham, United Kingdom |isbn= 978-0-09-192837-7}}', 592 => '* Pekkanen, Saadia M. "Governing the New Space Race." ''AJIL Unbound'' 113 (2019): 92–97. [https://www.cambridge.org/core/services/aop-cambridge-core/content/view/14BD9B37A7A15A8E225A5355BB29E51B/S2398772319000163a.pdf/div-class-title-governing-the-new-space-race-div.pdf online], role of international law.', 593 => '* {{cite book |title= Strategic Air Command: People, Aircraft, and Missiles |last1= Polmar |first1= Norman |author2=Timothy M. Laur |edition=2 |year= 1990 |publisher= Nautical and Publishing Company of America |location= Baltimore |isbn=0-933852-77-0 }}', 594 => '* {{cite book |title= Earthrise: How Man First Saw the Earth |last1= Poole |first1= Robert |year= 2008 |publisher = Yale University |location= New Haven, Connecticut |isbn= 978-0-300-13766-8 |url=https://books.google.com/books?id=5qHuAAAAMAAJ |author-link = Robert Poole (historian)}}', 595 => '* {{Cite journal | last1 = Portree | first1 = David S.F. | title = Mir Hardware Heritage | journal = Johnson Space Center Reference Series | place = Houston TX | publisher = NASA | series = NASA Reference Publication 1357 | date = March 1995 | url = https://historycollection.jsc.nasa.gov/history/shuttle-mir/references/documents/mirheritage.pdf | access-date = January 8, 2023 | archive-date = March 23, 2021 | archive-url = https://web.archive.org/web/20210323130750/https://historycollection.jsc.nasa.gov/history/shuttle-mir/references/documents/mirheritage.pdf | url-status = dead }}', 596 => '* {{cite book |title= The Race: The uncensored story of how America beat Russia to the Moon |last1= Schefter |first1= James |year= 1999 |publisher= [[Doubleday (publisher)|Doubleday]] |location= New York |isbn= 0-385-49253-7 |url= https://archive.org/details/raceuncensored00sche|url-access= registration}}', 597 => '* {{cite encyclopedia |last1=Schmitz |first1=David F. |editor=Whiteclay Chambers, John |encyclopedia=The Oxford Companion to American Military History |title=Cold War (1945–91): Causes |year=1999 |publisher=Oxford University Press |isbn=0-19-507198-0 |url=https://archive.org/details/oxfordcompaniont00cham }}', 598 => '* {{Cite book |first1=Robert C., Jr. |last1=Seamans |publisher=NASA History Office |title=Report of Apollo 204 Review Board |chapter=Findings, Determinations And Recommendations |chapter-url=http://www.hq.nasa.gov/pao/History/Apollo204/find.html |year=1967 }}', 599 => '* {{cite book |last1=Siddiqi |first1=Asif A. |title=Beyond Earth: A Chronicle of Deep Space Exploration, 1958–2016 |date=2018 |publisher=NASA History Division |location=Washington D.C. |isbn=978-1-62683-043-1 |page=xv |url=https://www.nasa.gov/sites/default/files/atoms/files/beyond-earth-tagged.pdf |access-date=March 22, 2021}}', 600 => '* {{cite book |last1=Siddiqi |first1=Asif A. |title=Challenge to Apollo : the Soviet Union and the space race, 1945–1974 |date=2000 |publisher=National Aeronautics and Space Administration, NASA History Div. |location=Washington, D.C |url=https://history.nasa.gov/SP-4408pt1.pdf |access-date=22 May 2022}}', 601 => '* {{cite book |title= Sputnik and the Soviet Space Challenge |last1= Siddiqi |first1= Asif A. |year= 2003 |publisher= [[University Press of Florida]] |location= Gainesville |isbn= 0-8130-2627-X|ref={{sfnRef|Siddiqi|2003a}}}}', 602 => '* {{cite book |title= The Soviet Space Race with Apollo |last1= Siddiqi |first1= Asif A. |year= 2003 |publisher= [[University Press of Florida]] |location= Gainesville |isbn= 0-8130-2628-8|ref={{sfnRef|Siddiqi|2003b}}}}', 603 => '* {{cite book |title=Britain and Ballistic Missile Defence, 1942–2002 |last1=Stocker |first1=Jeremy |year=2004 |publisher=Frank Case |location=London |isbn= 0-7146-5696-8 |pages=12–24 |url=https://books.google.com/books?id=Dlhwx7atBr0C}}', 604 => '* {{cite book |title=This New Ocean: A History of Project Mercury|first1=Loyd S., Jr. |last1=Swenson|first2=James M. |last2=Grimwood|first3=Charles C. |last3=Alexander |url=https://history.nasa.gov/SP-4201/cover.htm|date=1966|publisher=NASA|isbn=1934941875|access-date=January 8, 2023}}', 605 => '* {{cite book|title= The Moonlandings: An Eyewitness Account |last1= Turnhill |first1= Reginald |year= 2004 |publisher= [[Cambridge University Press]] |location= New York |isbn=0-521-81595-9 }}', 606 => '* {{cite book|title=108 minutes which changed the world (in Russian)|first1=Anton |last1=Pervushin|year=2011|publisher=Эксмо|isbn=978-5-699-48001-2}}', 607 => '', 608 => '==External links==', 609 => '{{Spoken Wikipedia|date=2005-07-02|Space_Race_Part_1.ogg|Space_Race_Part_2.ogg|}}', 610 => '* [http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo3.pdf Scanned letter from Wernher Von Braun to Vice President Johnson] {{Webarchive|url=https://web.archive.org/web/20050513043040/http://www.hq.nasa.gov/office/pao/History/Apollomon/apollo3.pdf |date=May 13, 2005 }}', 611 => '* [http://www.nps.gov/history/NR/twhp/wwwlps/lessons/101space/101space.htm ''"America's Space Program: Exploring a New Frontier"'', a National Park Service Teaching with Historic Places (TwHP) lesson plan]', 612 => '* [http://english.pravda.ru/main/2002/12/03/40312.html Why Did the USSR Lose the Moon Race?] from ''[[Pravda]]'', 2002-12-03', 613 => '* [http://www.nasm.si.edu/exhibitions/gal114/gal114.htm Space Race Exhibition] {{Webarchive|url=https://web.archive.org/web/20060101011729/http://www.nasm.si.edu/exhibitions/gal114/gal114.htm |date=January 1, 2006 }} at the [[Smithsonian Institution|Smithsonian]] [[National Air and Space Museum]]', 614 => '* [http://www.thespacerace.com/ TheSpaceRace.com] – Mercury, Gemini, and Apollo space programs', 615 => '* [http://www.historyshots.com/space/timeline.cfm Timeline of the Space Race to the Moon 1960 – 1969] {{Webarchive|url=https://web.archive.org/web/20051119095447/http://www.historyshots.com/space/timeline.cfm |date=November 19, 2005 }}', 616 => '* [https://web.archive.org/web/20070212153437/http://www.strangehorizons.com/2004/20040503/shadows.shtml Shadows of the Soviet Space Age, Paul Lucas]', 617 => '* [http://www.russianspaceweb.com/chronology_moon_race.html Chronology:Moon Race] at russianspaceweb.com', 618 => '* {{YouTube|9yW2cObTTy8|John F. Kennedy Moon Speech at Rice Stadium and Apollo 11 Mission Video}}', 619 => '', 620 => '{{Public sector space agencies}}', 621 => '{{Cold War}}', 622 => '{{Spaceflight}}', 623 => '{{NASA navbox}}', 624 => '{{US history}}', 625 => '{{United States topics}}', 626 => '{{Politics of outer space}}', 627 => '', 628 => '[[Category:Cold War]]', 629 => '[[Category:History of science and technology in the United States]]', 630 => '[[Category:Science and technology in the Soviet Union]]', 631 => '[[Category:Soviet Union–United States relations]]', 632 => '[[Category:Presidency of John F. Kennedy]]', 633 => '[[Category:Space policy]]', 634 => '[[Category:Presidency of Lyndon B. Johnson]]', 635 => '[[Category:Presidency of Dwight D. Eisenhower]]', 636 => '[[Category:Presidency of Richard Nixon]]', 637 => '[[Category:Presidency of Gerald Ford]]', 638 => '[[Category:Geopolitical rivalry]]', 639 => '[[Category:Technological races]]', 640 => '[[Category:Operation Paperclip]]', 641 => '[[Category:Space exploration]]', 642 => '[[Category:Spaceflight histories]]' ]