A fretted channel dominates this region of Ismeniae Fossae, imaged by NASA's Mars Odyssey. The topography of this region appears muted, most likely due to the presence of ground ice.
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Ismeniae Fossae

A Fretted Channel dominates this region of Ismeniae Fossae which is located along the highland-lowland hemispheric dichotomy of the Red Planet. The topography of this region appears muted, most likely due to the presence of ground ice.

Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

Image details


Date added:


2001 Mars Odyssey

2001 Mars Odyssey

Thermal Emission Imaging System



Full-Res TIFF:
PIA04014.tif (2.98 MB)

Full-Res JPG:
PIA04014.jpg (0.47 MB)

Image credit:
NASA/JPL/Arizona State University