PIA03009: Defrosting Spots
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: 672 x 957 pixels (width x height)
Produced By: Malin Space Science Systems
Producer ID: MOC2-1239
Full-Res TIFF: PIA03009.tif (644 kB)
Full-Res JPEG: PIA03009.jpg (180.1 kB)

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Original Caption Released with Image:

3 October 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark, defrosting spots formed on a polygon-cracked plain in the south polar region of Mars. The surface was covered with carbon dioxide frost during the previous winter. In spring, the material begins to sublime away, creating a pattern of dark spots that sometimes have wind streaks emanating from them, as wind carries away or erodes the frost.

Location near: 87.2S, 28.4W
Image width: width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Spring

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date: