This high-resolution view of Mercury shows hollows — the irregularly shaped, flat-floored depressions — on the southwestern peak ring of the Scarlatti basin. Although there are a number of small impact craters surrounding the hollows, there are (NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington)
In addition to the long, rocky cliffs thrust up by the contraction of Mercury's crust, smaller cliffs, shown at the bottom left, with white arrows, have been identified by MESSENGER's final low-altitude orbit. (NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washingt...
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