- Press Release
- Dec 5, 2022
NASA Mars Odyssey THEMIS Image: Young and Old Flows
Context image credit: NASA/Mars Orbiter Laser Altimeter (MOLA) Team
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The Odyssey spacecraft has completed a full Mars year of observations of the red planet. For the next several weeks the Image of the Day will look back over this first mars year. It will focus on five themes: 1) the poles – with the seasonal changes seen in the retreat and expansion of the caps; 2) craters – with a variety of morphologies relating to impact materials and later alteration, both infilling and exhumation; 3) channels – the clues to liquid surface flow; 4) volcanic flow features; and 5) dunes. While some images have helped answer questions about the history of Mars, many have raised new questions that are still being investigated as Odyssey continues collecting data as it orbits Mars.
This daytime infrared image was collected Aug. 13, 2003 during
southern spring. The upper part of the image shows the relatively
young volcanic flows from Arsia Mons, while the bottom exhibits
the flow front texture of older flows. The older flows are most
likely also from Arsia Mons.
[Source: ASU THEMIS Science Team]
Note: this THEMIS infrared 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.
Image Credit: NASA/JPL/Arizona State University
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