PIA04720: Defrosting Sand
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: 601 x 902 pixels (width x height)
Produced By: Malin Space Science Systems
Full-Res TIFF: PIA04720.tif (542.9 kB)
Full-Res JPEG: PIA04720.jpg (91.99 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:
MGS MOC Release No. MOC2-468, 30 August 2003

This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) narrow angle camera image, acquired in July 2003, shows a field of eroded dunes and patches of sand covered by carbon dioxide frost that accumulated during the previous winter. This springtime view shows that the frost has begun to sublime away, leaving dark patches and streaks on the dune surfaces. Wind has blown across the terrain, as well, causing some of the dark spots to elongate toward the left (west). The sand is located in a depression near 78.5S, 254.3W. Sunlight illuminates the scene from the upper left. The area shown is about 3 km (1.9 mi) wide.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2003-09-05