Space habitat

A space habitat, space settlement or spacestead is a theoretical space station that rotates to simulate gravity and is set up to be like an environment on Earth, with landscaping and one or more settlements where people live. Space habitats would be very big, from 500 meters in diameter to several kilometers in size.

Space habitat can also mean a base or enclosed settlement on or beneath the surface of a planet or large natural satellite or floating in its atmosphere.

 Proposed designs 
Proposed designs include but are not limited to the following.


 O'Neill cylinders 
O'Neill cylinders are cylinder-shaped spacesteads with livable space all over the inside surface (except for the ends). Two joined cylinders form the space settlement. 

 Stanford toruses 

 Bernal Spheres 

 Bishop rings 
These are essentially smaller Stanford toruses without central spokes.

 Birch Worlds 
These are spherical habitats one or two light-years in diameter built around a galaxy's supermassive black hole.

References

Category:Outer space