NASA's Mars Global Surveyor shows an old impact crater in southeastern Arabia Terra on Mars. The crater ejecta blanket is no longer visible and all of the terrain has been covered by a mantle of dust.

6 October 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an old impact crater in southeastern Arabia Terra. The crater ejecta blanket is no longer visible and all of the terrain has been covered by a mantle of dust. The dark streaks on the crater wall are the result of dry avalanches of dust; the darker streaks formed more recently than the lighter-toned streaks. Indeed, the darkest streak is likely to be less than a few years old.

Location near: 3.0°N, 315.6°W
Image width: width: ~3 km (~1.9 mi)
Illumination from: lower left
Season: Northern Autumn

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