A moon-digging robot that employs independent steering and 28 sensors (pictured) took second prize in the 2009 Regolith Excavation Challenge.
"We got the most out of this machine," Todd Mendenhall, who led the Gardena, California-based Terra Engineering team, said in a statement. "It provided us
with the expected level of information that we needed to properly operate the hardware."
For the first time in the competition's three-year history, NASA gave U.S. $750,000 in cash prizes to the top 3 of 19 teams.
Photograph courtesy Jamie Foster, California Space Authority