NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Valles Marineris. Mars Reconnaissance Orbiter (MRO) image showing layers and exposed bedrock along a cliff in west Candor Chasma, part of the extensive Valles Marineris canyon system on the surface of Mars. Imaged by the MRO's HiRISE (High Resolution Imaging Science Experiment) camera.
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