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ThereIWas2
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pmn1":22c6s9f4 said:Aerospace_Cadet":22c6s9f4 said:The original design of the Space shuttle had larger external tanks that were going to be used as building blocks for a large wheel-like Station.
Kim Stanley Robinson's Red/Green/Blue Mars trilogy used exactly this technique to build the vehicle that took the first 100 settlers to Mars.