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Associated Press
Lockheed Martin associate research scientist Monica Leong,  bakes a vegan pizza from a recipe developed for a mission to Mars at NASA's Advanced Food Technology Project at Johnson Space Center in Houston Tuesday, July 3, 2012. NASA is currently planning a mission to Mars, which has gravity, so more options for food preparation, like chopping vegetables, are available as opposed to the dehydrated fare of current space missions. (AP Photo/Michael Stravato)

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