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©JPL-Caltech/ZUMAPRESS.com/MAXPPP - May 28, 2019, Mars Surface: NASA's Mars 2020 will land in Jezero Crater, pictured here. The image was taken by instruments on NASA's Mars Reconnaissance Orbiter, which regularly takes images of potential landing sites for future missions. On ancient Mars, water carved channels and transported sediments to form fans and deltas within lake basins. Examination of spectral data acquired from orbit show that some of these sediments have minerals that indicate chemical alteration by water. Here in Jezero Crater delta, sediments contain clays and carbonates (Credit Image: © JPL-Caltech/NASA via ZUMA Wire/ZUMAPRESS.com)