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NASA's Advanced Food Technology Project manager Michele Perchonok, right, and Lockeed Martin Sr. Research Scientist Maya Cooper, try a pizza recipe being tested in a kitchen at Johnson Space Center Tuesday, July 3, 2012 in Houston, Texas. 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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