HiRISE: unusual mound in a mid-latitude crater

Interestingly patterned mound in an unnamed mid-latitude crater. Click for larger version. Credit: NASA/JPL/University of Arizona
Interestingly patterned mound in an unnamed mid-latitude crater. Click for larger version. Credit: NASA/JPL/University of Arizona

This is an interesting new image from the HiRISE camera on the Mars Reconnaissance Orbiter, first posted on Beautiful Mars on Tumblr. What caused the unusual patterning on this mound? It’s reminiscent of polygonal terrain created by the freezing/thawing of subsurface ice, but whether that is the same explanation here isn’t known. All of the thousands of images taken so far by MRO can be seen here.

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Paul Scott Anderson is a freelance space writer with a life-long passion for space exploration and astronomy. He started his blog The Meridiani Journal in 2005, which is a chronicle of planetary exploration. He also publishes The Exoplanet Report e-paper. In 2011, he started writing about space on a freelance basis, and now also currently write for AmericaSpace and Examiner.com. He has also written for Universe Today and SpaceFlight Insider, has been published in The Mars Quarterly and has done supplementary writing for the well-known iOS app Exoplanet for iPhone and iPad.

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