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Mercury in Stereo: Craters Within Craters

This stereo image pair of Mercury's craters was made using data from NASA's Mariner 10, which flew by the planet three times in 1974 and 1975. Mariner 10 did not have a stereo camera; instead, these images were taken from slightly different angles during separate flybys. The technique reveals the deep, complex structure of craters within craters.