What is a space station?
A space station is a special kind of large satellite much bigger than a space capsule that is placed in orbit around the Earth. A space station is usually designed to accommodate a number of astronauts for a comparatively longer period.
What is a space colony?
A space colony is a very large space station similar to an island in space, where a very larger number of persons can live and work. So far, no space colonies have been placed in orbit.