NASA's Mars Global Surveyor shows a suite of gullies in the wall of a crater on Mars. The gullies are considered to have formed by downslope transport of water-laden debris.

MGS MOC Release No. MOC2-470, 1 September 2003

This July 2003 Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) full-resolution (1.5 meters--5 feet--per pixel) image shows a suite of gullies in the wall of a crater near 35.3°S, 76.3°W. The gullies are considered to have formed by downslope transport of water-laden debris, although the exact nature of the fluid is unknown because it is no longer present. This image covers an area 3 km (1.9 mi) wide. Sunlight illuminates the scene from the upper left.

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