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NASA imagined what humanity in space would look like back in the 1970s and it looks a lot like what we see in film today. Each of these concepts are approximately the size of a Californian beach town, and are self-contained habitats with artificial gravity, artificial weather, and are imagined in three types of colony: toroidal (donut shaped), sphere, and cylinder.

Toroidal – Population 10,000–140,000

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Toroidal cutaway

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Toroidal interior

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Toroidal under construction

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Another Toroidal model

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Bernal Spheres – Population 10,000–30,000

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Bernal Sphere interior

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Bernal Sphere cutaway

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Bernal Sphere agricultural model

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Bernal Sphere under construction

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Bernal Sphere model

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Cylindrical Colonies – Population: Over One Million

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Cylinder Interior

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Cylinder – View from one end

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Cylinder during solar eclipse

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