Fluidic space

Fluidic space (or fluid space) is a fictional concept in the television series Star Trek: Voyager.

Fluid space is a different dimension (outside of our universe) inhabited by the advanced Species 8472. Fluid space is apparently a continuum filled with an organic fluid. In the episode Scorpion, Part II, the Borg discover Species 8472 in the Delta Quadrant and try to assimilate their bio-technology which is more advanced than anything the Borg have seen. The Borg open a rift in space using a deflector dish, trying to conquer fluidic space. However, Species 8472 is extremely resistant to the Borg's efforts to conquer them, and end up fighting and prevailing against the Borg in normal space. The crew of the USS Voyager help the Borg defeat Species 8472 and send them back into fluidic space. In return, the Borg allowed Voyager safe passage through their space for a limited time.

Fluidic Space has no stars, no planets and no nebulae. Perhaps with their vast technology and intelligence it was created by the "Alien" race in order to serve their own biological needs.

The term fluidic space, could be in reference to the idea of entire galaxies consisting almost entirely of hydrogen and other gasses. In galaxies such as these, there are no stars, and the gravity of the gasses condense them to such an extent that they take on an almost fluid quality. It is believed that there are a great deal more of these galaxies than ones similar to our own.