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PIA03750: Volcanoes Ceraunius Tholus and Uranius Tholus
NASA's Mars Global Surveyor shows the martian volcanoes, Ceraunius Tholus (lower) and Uranius Tholus (upper). The presence of impact craters on these volcanoes, particularly on Uranius Tholus indicates that they are quite ancient and are not active today
 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:  933 x 1689 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-305  
 Primary Data Set:  MGS EDRs 
 Full-Res TIFF:  PIA03750.tif (5.031 MB)
 Full-Res JPEG:  PIA03750.jpg (269.5 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:

Acquired in March 2002, this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) wide angle view shows the martian volcanoes, Ceraunius Tholus (lower) and Uranius Tholus (upper). The presence of impact craters on these volcanoes, particularly on Uranius Tholus, indicates that they are quite ancient and are not active today. The light-toned area on the southeastern face (toward lower right) of Ceraunius Tholus is a remnant of a once more extensive deposit of dust from the global dust storm events that occurred in 2001. The crater at the summit of Ceraunius Tholus is about 25 km (15.5 mi) across. Sunlight illuminates the scene from the lower left.

Image Credit:
NASA/JPL/MSSS

Image Addition Date:
2002-04-23