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Weird Geological Features Spied On Mars

astroengine writes "The High-Resolution Imaging Science Experiment (HiRISE) camera carried by NASA's Mars Reconnaissance Orbiter has spotted a strange geological feature that, for now, defies an obvious explanation. Found at the southern edge of Acidalia Planitia, small pits with raised edges appear to hug a long ridge. So far, mission scientists have ruled out impact craters and wind as formation processes, but have pegged the most likely cause to be glacial in nature."

1 of 99 comments (clear)

  1. Welcome by Farmer+Pete · · Score: -1, Offtopic

    I for one welcome our new pit digging overlords.