@elonmusk : 150 Earth-Mars transfer windows are needed to make Mars self-sustaining, ideally at least 20. 1/4 to 1/2 century. • TwiCopy

Elon Musk

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calendar_today02-06-2009 20:12:29

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Elon Musk

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10 Earth-Mars transfer windows are needed to make Mars self-sustaining, ideally at least 20. 1/4 to 1/2 century.

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