PIA05977: Ascraeus Caldera Wall
 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 1254 pixels (w x h)
 Produced By:  Malin Space Science Systems
 Producer ID:  MOC2-732
 Full-Res TIFF:  PIA05977.tif (1.05 MB)
 Full-Res JPEG:  PIA05977.jpg (205.3 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:

20 May 2004
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the wall on one of the calderae at the summit of the large volcano, Ascraeus Mons. A caldera is a large depression formed by collapse after magma in a volcano is erupted from or withdrawn to a greater depth. After collapse, the wall of this caldera was further modified by downslope movement of debris and it was pelted by small meteors to form a scattering of small craters. This image is located near 11.6N, 104.6W, and covers an area about 3 km (1.9 mi) across. The picture is illuminated by sunlight from the lower left.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2004-05-20