Space station

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Image of a pair of O'neill Cylinders, a proposed type of habitation space station over 30 km long

A space station is an inhabited structure designed for permanent use outside the atmosphere of any planet. Space stations are usually situated in a fixed orbit around a planet or star. Space stations differ from spaceships and starships in that they usually only have enough propulsion power to maintain their orbits, while ships are intended to move under their own power between planets or even star systems. A space station designed primarily for civilian habitation may be called a "space colony".

Space Stations

Several real space stations have been built, including Skylab, Mir, and the International Space Station. Also, a few space stations have been designed but exist only as concepts, among them the Stanford Torus, Bernal Sphere and O'Neill Cylinder. These occasionally materialize in science fiction (such as O'neill Cylinders in Gundam).

Examples from science fiction include the following:

  • Babylon 5
  • Deep Space 9
  • Empok Nor
  • Torros III shipyards
  • Utopia Planitia Fleet Yards
  • San Francisco Fleet Yards
  • Deep Space K-7
  • Ty'Go'kor
  • Spacedock
  • Starbase 74
  • Deep Space 5
  • Starbase 11
  • Kuat Drive Yards
  • Midway Space Station
  • Goa'uld Starbase
  • Ancient Weapons Satellite