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Curiouser And Curiouser: NASA's Curiosity Rover Finds Piles Of Silica On Mars

By Bill Chappell
Published December 18, 2015 at 10:43 AM EST
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Bill Chappell
Bill Chappell is a writer and editor on the News Desk in the heart of NPR's newsroom in Washington, D.C.
See stories by Bill Chappell