View of Mount Sharp (IMAGE) Geological Society of America Caption View of Mount Sharp, Mars, with buttes showing main stratigraphy of the sulfate-bearing unit to be explored by the Curiosity rover, and expected ancient environments based on observed sedimentary structures. Credit Rapin et al., Geology Usage Restrictions Credit Rapin et al., Geology License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.