In the summer of 1975, when space exploration was less than two decades old, NASA Ames Research Center and Stanford University held a space settlement design summit, known as the 1975 NASA Summer Study, that envisioned what life in space might look like, with a focus on orbiting spaceships. The result was a document called "Space settlements: A design study."
In the forward, NASA Administrator James Fletcher called the study a big-picture question for humankind: "To assess the human and economic implications as well as technical feasibility, the participants in this effort have provided us with a vision that will engage our imagination and stretch our minds."
Here, for example, is a cutaway view of ring shaped Toroidal colonies, exposing the interior. Click on for more illustrations from the study.
NASA's 1975 vision of space colonization (pictures)
by CNET News.com | November 27, 2012, 12:00pm PST | Image 1 of 13
Image 1 of 13
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