Mars had dry and wet eras and dried up for good 3 billion years ago (IMAGE)

DOE/Los Alamos National Laboratory

Mars had dry and wet eras and dried up for good 3 billion years ago

Caption

View of the slopes of Mount Sharp, showing the various types of terrain that have been and will be explored by the Curiosity rover. The sedimentary structures observed by ChemCam's telescopic images (mosaics A and B) reveal clues about the ancient environments in which they formed.

Credit

NASA/JPL-Caltech/MSSS/CNES/CNRS/LANL/IRAP/IAS/LPGN

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