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Martian Asteroid Impact
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Martian Asteroid Impact

September 26, 2012
This small, 230-meter crater formed by the impact of an asteroid onto a lobate flow deposit on Mars.

These deposits are surmised to have formed by the flow of glacial material on the surface of the planet. Ground-penetrating radar data from SHARAD, the radar sounder aboard MRO, show that a large abundance of ice is under the surface.

The impact penetrated through the material and into the substrate and formed this "double crater" as it excavated material from these two layers of different strengths.

Written by: Eldar Noe

Credits: NASA/JPL/University of Arizona


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