Space is a world devoid of the things we need to live and thrive: air, gravity, hot showers, fresh produce, privacy, beer. Space exploration is in some ways an exploration of what it means to be human. How much can a person give up? To answer these questions, space agencies set up all manner of quizzical and startlingly bizarre space simulations. As Roach discovers, it's possible to preview space without ever leaving Earth.
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