PIA08668: Weepy Crater
NASA's Mars Global Surveyor shows gullies all of which head at the same level on a south mid-latitude crater 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:  512 x 908 pixels (w x h) 
 Produced By:  Malin Space Science Systems 
 Producer ID:  MOC2-1552  
 Full-Res TIFF:  PIA08668.tif (465.6 kB)
 Full-Res JPEG:  PIA08668.jpg (62.27 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:

11 August 2006
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies -- all of which head at the same level -- on a south mid-latitude crater wall. At the 6 meters (~20 feet) per pixel scale at which this image was obtained, the gullies almost appear as if they are the product of a "weeping layer," a porous layer of rock through which a liquid such as water may have percolated until it came to the martian surface at this crater wall, then flowed downslope, toward the crater floor.

Location near: 34.0°S, 208.4°W
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2006-08-12