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1/ Mars settlements get way more attention in the press. But I'm far more excited by the idea of asteroid mining. Why? My guess is that asteroid mining will become profitable decades before a Mars settlement could turn a profit. A space effort that turns a profit will grow.
How do we get the minerals from the asteroids to earth? Are we gonna get a 2/?
You just wrap them in an ablative layer and drop them from an easy recovery point. But if you're intent on greatly increasing human activity in space, the materials would be put to use there, such as building a SPSS array.
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