PDS logoPlanetary Data System
PDS Information
Find a Node - Use these links to navigate to any of the 8 publicly accessible PDS Nodes.

This bar indicates that you are within the PDS enterprise which includes 6 science discipline nodes and 2 support nodes which are overseen by the Project Management Office at NASA's Goddard Space Flight Center (GSFC). Each node is led by an expert in the subject discipline, supported by an advisory group of other practitioners of that discipline, and subject to selection and approval under a regular NASA Research Announcement.
Click here to return to the Photojournal Home Page Click here to view a list of Photojournal Image Galleries Photojournal_inner_header
Latest Images  |  Spacecraft & Technology  |  Animations  |  Space Images App  |  Feedback  |  Photojournal Search  

PIA07376: Inverted Channel
 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 2455 pixels (w x h)
 Produced By:  Malin Space Science Systems
 Producer ID:  MOC2-1008
 Full-Res TIFF:  PIA07376.tif (1.652 MB)
 Full-Res JPEG:  PIA07376.jpg (301.8 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:

This Mars Global Surveyor (MGS) Orbiter Camera (MOC) image shows an inverted channel running down, through a valley in the Memnonia Sulci region of Mars. The original channel is gone, as are the rocks through which it cut. The channel floor and/or the material that filled the channel was more resistant to erosion, and thus left standing high as a ridge. Inverted channels and valleys are common on Mars. Many old valley networks have been filled, buried, and in some cases, exhumed and inverted, all across the planet.

Location near: 11.4°S, 174.4°W
Image width: ~3.0 km (~1.9 mi)
Illumination from: upper left
Season: Southern Winter

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2005-02-20