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Ascraeus Mons Summit

July 10, 2023
Context Image
Context image for PIA26021
This image from NASA's Mars Odyssey shows part of the summit of Ascraeus Mons. Ascraeus Mons is the northernmost and tallest of the three large aligned Tharsis volcanoes.
Context Image
Context image for PIA26021

This VIS image shows part of the summit of Ascraeus Mons. Ascraeus Mons is the northernmost and tallest of the three large aligned Tharsis volcanoes. Calderas are found at the tops of volcanoes and are the source region for magma that rises from an underground lava source to erupt at the surface. Volcanoes are formed by repeated flows from the central caldera. The final eruptions can pool within the summit caldera, leaving a flat surface as they cool. Calderas are also a location of collapse, creating rings of tectonic faults that form the caldera rim. Ascraeus Mons has several caldera features at its summit. Ascraeus Mons is 18 km (11 miles) tall, for comparison Mauna Kea – the tallest volcano on Earth – is 10 km tall (6.2 miles, measured from the base below sea level).

Orbit Number: 94366 Latitude: 11.3736 Longitude: 255.73 Instrument: VIS Captured: 2023-03-24 09:40

Please see the THEMIS Data Citation Note for details on crediting THEMIS images.

NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Science Mission Directorate, 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.

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Mission
Target
  • Mars
Spacecraft
  • 2001 Mars Odyssey
Instrument
  • Thermal Emission Imaging System
Credit
NASA/JPL-Caltech/ASU

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