Zero gravity
From Tardis Wiki, the free Doctor Who reference
Zero gravity was the condition of weightlessness usually encountered in outer space.
One of the attractions in the Leisure Hive on Argolis was zero gravity squash. (TV: The Leisure Hive)
The Manussan Empire created the Great Crystal in a zero gravity environment. (TV: Snakedance)
The Apocalypse Element could be manipulated telekinetically in a zero gravity environment. (AUDIO: The Apocalypse Element)
A zero gravity shaft connected the floors on the IMC spacecraft Insider Trading. (PROSE: Lucifer Rising)