PIA04757: Ancient Valley
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 1008 pixels (width x height)
Produced By: Malin Space Science Systems
Full-Res TIFF: PIA04757.tif (678.3 kB)
Full-Res JPEG: PIA04757.jpg (116.8 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. MOC2-491, 22 September 2003

Auqakuh Vallis is an ancient valley system that might have once been a conduit for liquid water flowing north, across northeastern Arabia Terra, toward the Nilosyrtis region. This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of the Auqakuh Vallis system. The valley was cut into layered bedrock. It was once much deeper than today, but much of the surrounding materials have been eroded away. Windblown sediments now cover the floor of the valley, a reflection of the parched conditions of the modern martian environment. This picture is located near 29.1N, 299.6W, and covers an area 3 km (1.9 mi) across. Sunlight illuminates the scene from the lower left.

Image Credit:
NASA/JPL/MSSS

Image Addition Date:
2003-09-22