This image released on Friday, Aug. 17, 2012, shows bedrock that was exposed after Curiosity's rocket stage fired its engines and blew away soil from the Martian surface. (AP Photo/NASA)
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This image released on Friday, Aug. 17, 2012, shows bedrock that was exposed after Curiosity's rocket stage fired its engines and blew away soil from the Martian surface. (AP Photo/NASA)
