Discovery Channel

NASA 50th Anniversary Space Stations

Space Stations

The concept of a manned space habitat orbiting the Earth has existed for over 100 years. NASA developed space station concepts based on enormous rubber ring designs during the late 1950s and early 1960s, but extended durations in space began in 1973, when NASA launched Skylab. It was the first American manned outpost.

Since then, global cooperation has built the largest structure in space, the International Space Station. The lessons learned from both of these space stations are helping to return humans to the Moon and even undertake extended missions to Mars.
(NASA)

Skylab

Skylab's main objective was to prove that humans could live and work in space for extended periods, and to expand our knowledge of solar astronomy.
(NASA)

Freedom

The Space Station that never was.
(NASA)

ISS

The staging post for future expansion.
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