PIA08547: Green Gullies
NASA's Mars Global Surveyor shows small gullies on the north wall of a crater within the much larger Green Crater in Noachis Terra, Mars. The gullies might have formed by seepage and runoff of ground water.
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS) 
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC) 
 Product Size:  836 x 2022 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-1497  
 Full-Res TIFF:  PIA08547.tif (1.692 MB)
 Full-Res JPEG:  PIA08547.jpg (191.4 kB)  

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Original Caption Released with Image:

18 June 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a series of small gullies on the north wall of a crater within the much larger Green Crater in Noachis Terra, Mars. The gullies might have formed by seepage and runoff of ground water; others have suggested that melting snow or ice might create such gullies. The crater floor exhibits a field of sand dunes and some wispy, dark streaks left by passing dust devils.

Location near: 53.0°S, 8.0°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2006-06-18