Skylab was actually a converted second stage of a Saturn booster rocket originally intended for one of the Apollo missions that were cancelled.
there was exactly 4
http://en.wikipedia.org/wiki/Skylab
The skylab returned on July 11,1979
Skylab was intentionally deorbited and crashed in Australia on 11 July 1979.
The Skylab Space Station was the Untied States first space station, and was operated and launched by NASA in 1973. The Skylab Space Station stayed in Earth's orbit from 1973 to 1979.
there was exactly 4
http://en.wikipedia.org/wiki/Skylab
skylab was built in may,1973
Skylab
Skylab I was launched on 14 May 1973.
skylab
One of my projects is aboard the Skylab.
The skylab returned on July 11,1979
No. There were others before it, like Skylab and Mir.
Skylab was intentionally deorbited and crashed in Australia on 11 July 1979.
The Skylab Space Station was the Untied States first space station, and was operated and launched by NASA in 1973. The Skylab Space Station stayed in Earth's orbit from 1973 to 1979.
It wasn't intentionally abandoned. It was originally thought that the Space Shuttle would be operational before Skylab fell to earth. The Space Shuttle would then raise Skylab into a higher orbit to be used by multiple Space Shuttle crews, but an overabundance of solar flares caused Skylab to fall to earth 2 years before it normally would have. Delays in the development of the Space Shuttle spelled the demise of Skylab.