NASA's Mars Global Surveyor shows a view of linear troughs and mesas formed in the frozen carbon dioxide of the martian south polar residual cap.

28 July 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a view of linear troughs and mesas formed in the frozen carbon dioxide of the martian south polar residual cap. This image, obtained in May 2005, is a reminder that not all of the south polar cap landscapes resemble "swiss cheese."

Location near: 86.7°S, 24.8°W
Image width: width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Spring

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