This image released by NASA shows a set of pictures taken by 

This image released by NASA shows a set of pictures taken by NASA's Mars Reconnaissance Orbiter showing what may be parts of a Soviet spacecraft that landed on Mars in 1971. Scientists say more work is needed to confirm that it is hardware from the Mars 3 lander. The spacecraft transmitted for 14.5 seconds on the Martian surface. (AP Photo/NASA)
Associated Press
This image released by NASA shows a set of pictures taken by NASA's Mars Reconnaissance Orbiter showing what may be parts of a Soviet spacecraft that landed on Mars in 1971. Scientists say more work is needed to confirm that it is hardware from the Mars 3 lander. The spacecraft transmitted for 14.5 seconds on the Martian surface. (AP Photo/NASA)
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