PIA08547: Green Gullies


Green Gullies

Caption:

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

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Global Surveyor (MGS)
Instrument Host Mars Global Surveyor
Host Type Orbiter
Instrument Mars Orbiter Camera (MOC)
Detector
Extra Keywords Crater, Dune, Dust, Grayscale, Water
Acquisition Date
Release Date 2006-06-18
Date in Caption 2006-06-18
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA08547
Identifier PIA08547