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On the Cover Issue 42, Spring 2011

A mobility chassis prototype is demonstrated in 2008 as part of a series of tests of lunar surface concepts. This is one prototype of many that are field tested as part of NASA’s ongoing Desert Research and Technology Studies, or Desert RATS. The Desert RATS tests offer a NASA-led team of engineers, astronauts, and scientists from across the country an opportunity to come together to conduct technology development research for future planetary exploration missions.

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