Astrobotic Technology, a Carnegie Mellon University spinoff company vying for the Google Lunar X-Prize, said Aug. 23 that heavy-equipment maker Caterpillar Inc. has agreed to sponsor its planned April 2013 robotic expedition to the lunar surface.rnThe Pittsburgh-based company is one of 21 teams hoping to claim the $20 million prize for being first to land a robotic rover on the Moon, travel at least 500 meters and transmit high-definition video.
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