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)
In the 26th century, Isomorph Cybermen used back-mounted zero-g attitude thrusters to fight Daleks on transolar discs in the vacuum of space. (PROSE: Heliotrope Bouquet [+]Dan Abnett, DWM short stories (Marvel Comics UK, 1991)., GRAPHIC: Dalek — Cyber War [+]DWM illustrations (DWM illustrations, 1991).)
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)
Among other types, Tellus IV boasted zero-G gardens. (PROSE: The Secret in Vault 13)