Acidalia Planitia

Jet Propulsion Laboratory https://www.jpl.nasa.gov/ April 4, 2003

The small mounds with summit depressions in the northern part of this NASA Mars Odyssey image have an unknown origin. Some scientists think they may be cinder cones, while others think they may be pseudocraters, formed by the interaction of lava and ice.

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Mission

Target

Mars

Spacecraft

2001 Mars Odyssey

Instrument

Thermal Emission Imaging System

Credit

NASA/JPL/Arizona State University

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