Orbiter discovers a possibly once-habitable ancient Mars lake

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The HiRISE camera on the Mars Reconnaissance Orbiter took this image of the largest fan in Holden crater when the orbiter was flying about 162 miles over the surface in March 2007. Geologists discovered a complex geologic history for the site includi ...
The HiRISE camera on the Mars Reconnaissance Orbiter took this image of the largest fan in Holden crater when the orbiter was flying about 162 miles over the surface in March 2007. Geologists discovered a complex geologic history for the site, including two wet episodes that may have been amenable to life. Credit: NASA/JPL/University of Arizona

Scientists studying images from The University of Arizona-led High Resolution Imaging Experiment camera on NASA's Mars Reconnaissance Orbiter have discovered never-before-seen impact "megabreccia" and a possibly once-habitable ancient lake on Mars at a place called Holden crater.


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