In the future, when we're living on Mars, driving our space cars, things like global warming will be a thing of the past—but we'll have new problems... like how to have sex in zero gravity!

This past weekend, the History Channel took the time to investigate this pressing concern, exploring the ins and outs (teehee!) of sex in space. Turns out, sex in space is a lot more complicated (and less sexy) than it is on earth. Maybe it's for the best that Virgin Galactic scuttled that plan for space porn.

· Sex In Space (history.com)

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