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Title: How NASA envisioned space colonies in the 1970s Written by: duddy on May 28, 2014 (https://biology-forums.com/gallery/47/4_28_05_14_12_33_27.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view;id=16256) These NASA illustrations from the 1970s depict a toroidal space colony that could support 10 000 humans. |