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Occupy Mars? Or the Moon? Get a Reality Check on Elon Musk's Plans
SpaceX founder Elon Musk now says he wants to build a city on the moon before building a city on Mars. Is either scenario realistic?
In the latest episode of the Fiction Science podcast, biologist Scott Solomon, the author of a new book titled "Becoming Martian," does a reality check on humanity's prospects for living on other worlds.