Skylab was the name of a specific NASA program and mission. It fell back to Earth and burned up in the atmosphere. However, if by skylab you mean a laboratory in space, the International Space Station has three laboratories.
http://en.wikipedia.org/wiki/Skylab
Skylab was the precursor of the present International Space Station. It was a space station launched by NASA on May 14, 1973, and remained in orbit until July 11, 1979.
skylab was built in may,1973
skylab
Skylab I was launched on 14 May 1973.
Skylab no longer exists. The last crew left for the final time in 1974. It re-entered the earth's atmosphere 5 years later and burned up.
One of my projects is aboard the Skylab.
The skylab returned on July 11,1979
After Apollo 17 there have not been any plans for any moon mission. It was the Skylab and the Shuttle program.
The date the Skylab launched and entered Earth's orbit was the 14 May 1973.
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.