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ricardobeat
on Dec 2, 2014
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NASA: We're sending humans to Mars
SpaceX says Falcon Heavy will be able to put 14 tons on a mars trajectory, and it's having it's first launch next year. The soviet Energia could (theoretically) already do that almost three decades ago. What is missing from NASA's perspective?
cloudwalking
on Dec 2, 2014
[–]
Everything else. Lift to orbit is only one of hundreds of factors.
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