This is the Skylab-Columbia Spacestation used by SimNASA from 11 March 2003 to May 11, 2007 after being in orbit for over 1,521 days, with 1,480 days of continuous manned operation.
The goal of Skylab-Columbia: To expand our understanding of the Earth and prepare for the further exploration of space by extending our knowledge of the solar system and its long term effects on man. Initial Skylab crews inhabited the space station for short periods while conducting a number of scientific studies of both Earth and Solar observation. The initials crews consisted of three person crews and then expand to five person crew during the second phase when the Columbia module was joined to the original Skylab module. After the successful matting of these two modules Skylab took on the name of Skylab-Columbia Space Station (SCSS).Â
For more information visit the SimNASA website.