The three billionaires are locked in a race to reach space — but some future visions look more promising than others.
Source: SpaceX Mars City: Bezos and Branson reveal the flaw in Elon Musk’s vision of space
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The three billionaires are locked in a race to reach space — but some future visions look more promising than others.
Source: SpaceX Mars City: Bezos and Branson reveal the flaw in Elon Musk’s vision of space