NASA hard at work on menu for Mars trip

Precise mesurements of ingredients are made to be able to plan how much a spacecraft design can hold 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)