NASA imaging reveals layers in surface of Mars

NASA has released this image of a circular depression on the surface of Mars captured by the High Resolution Imaging Science Experiment (HiRISE) camera on the Mars Reconnaissance Orbiter (MRO).

The spacecraft has been orbiting Mars since March 2006 completing more than 40,000 orbits in that time.

The image shows a circular depression in a dark-toned unit associated with a field of cones to the northeast. The depression appears to expose layers especially on the sides or walls, which are overlain by dark sands.


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