If your mental image of futuristic human colonies in space involves tubular ships, rolling hills, and a population seemingly plucked from a cocktail party in Sausalito in 1972, chances are good that you've been influenced by the art of Rick Guidice and Don Davis — illustrators commissioned by NASA to envision human homes among the stars. At Discover.com, Veronique Greenwood writes about these artists and the lasting impact they've had on science and science fiction.
The men who designed space colonies
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