Here's What NASA's Vision For The Future Looked Like In 1975 - SlashGear

NASA is eager to get humans to Mars, but the concept of long-term habitation in space is far from new, with classic concepts presenting entire cities.

NASA explains that before the ISS, the first U.S. space station, Skylab, demonstrated that humans could live in space for up to a year. Skylab became a space outpost from 1973 to 1974. During those y… [+1482 chars]

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