The Mars Science Laboratory, Curiosity, continues its exciting traverse of Mars. In an image acquired in September, it was exploring the boundary between two rock units: the light-toned Murray Formation and the overlying and darker-toned Stimson unit. We can clearly see the rover in a complex terrain marked by tonally varied rocks, which on the surface, can correspond to the contact between rock units and dark sand.
http://photojournal.jpl.nasa.gov/catalog/PIA20211
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