Mercury's Limb (NASA, MESSENGER, 07/14/11)
In this limb image of Mercury's southern hemisphere, the enormous Rembrandt basin is visible in the lower left; bright Amaral crater, above Rembrandt in this image, also stands out. Towards the middle of the image is Sher-Gil, a dark-haloed crater.
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
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