By: Miriam Kramer
Published: 04/19/2013 05:07 AM EDT on SPACE.com
Getting busy might sound like a good way to pass the time on long space journeys...
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By: Tariq Malik
Published: 02/24/2012 07:06 AM EST on SPACE.com
Playboy is about to launch into the final frontier, at least in its imagination....
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