This cropped image from NASA's Curiosity rover shows one set of marks on the surface of Mars where blasts from the descent-stage rocket engines blew away some of the surface material. This particular scour mark is near the rear left wheel of the rover and is the left-most scour mark on the left side of this larger panorama from Curiosity's Mast Camera (http://photojournal.jpl.nasa.gov/catalog/PIA16051 ). This scour mark is named Goulburn after a 2-billion year-old sequence of rocks in northern Canada.
Image Credit: NASA/JPL-Caltech/MSSS
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