This image from NASA's Mars Global Surveyor shows a spectacular summertime view of a portion of the south polar residual cap.

25 March 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a spectacular summertime view of a portion of the south polar residual cap. Large, semi-continuous mesas are separated by circular and other oddly-shaped depressions. These features are all formed in frozen carbon dioxide; the scarps which bound the mesas and pit walls retreat at a rate of about 3 meters (a little more than 3 yards) each martian southern summer.

Location near: 87.7°S, 357.3°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Summer

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