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Color coding in this image of Mars represents differences in elevation, measured by NASA's Mars Global Surveyor. While surface liquid water is rare and ephermal on modern Mars.
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Topography of Mars

Color coding in this image of Mars represents differences in elevation, measured by the Mars Orbiter Laser Altimeter on NASA's Mars Global Surveyor. While surface liquid water is rare and ephermal on modern Mars, the topography of Mars reveals large, ancient valley networks and outflow channels. These are evidence that liquid water was more common and played a much more important role in Mars' past.

Image details

ID#:
PIA15094

Date added:
2011-11-21

Target:
Mars

Mission:
Mars Global Surveyor (MGS)

Spacecraft:
Mars Global Surveyor Orbiter

Instruments:
Mars Orbiter Laser Altimeter

Size:
989 x 632 pixels (width x height)

Rating:



Views:
1,639

Full-Res TIFF:
PIA15094.tif (1.88 MB)

Full-Res JPG:
PIA15094.jpg (0.08 MB)

Image credit:
NASA/JPL-Caltech