Royal Air Force Maj. Kevin Gambold monitors and pilots an MQ-1 Predator at Ali Air Base, Iraq, Jan. 10, 2008.
Credit: Airman 1st Class Jonathan Snyder/U.S. Air Force
Some people try to make the most of their spare time by exercising, volunteering, or simply recharging their batteries. Others like to use that time to build robots that can be blasted to the moon and then set free to roam the lunar landscape.
From Scientific American
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