Christopher Fedo¹, John P Grotzinger², Lauren A Edgar³, Alexander B. Bryk⁴, Valerie K Fox⁵, Kristen A Bennett⁶, Kathryn Stack⁷, Abigail Fraeman⁸, Kenneth S Edgett⁹, Sanjeev Gupta¹⁰, Steven Banham¹¹, Vivian Zheng Sun¹², Christopher H House¹³, Ashwin R Vasavada⁷ and Nathaniel Stein⁸, (1)University of Tennessee, Department of Earth and Planetary Sciences, Knoxville, TN, United States, (2)Caltech, Pasadena, CA, United States, (3)USGS, Astrogeology, Flagstaff, AZ, United States, (4)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (5)California Institute of Technology, Pasadena, United States, (6)Arizona State University, Tempe, AZ, United States, (7)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (8)California Institute of Technology, Pasadena, CA, United States, (9)Malin Space Science Systems, San Diego, CA, United States, (10)Imperial College London, Earth Science and Engineering, London, United Kingdom, (11)Imperial College London, London, SW7, United Kingdom, (12)Brown University, Providence, RI, United States, (13)Pennsylvania State University, Geosciences and Penn State Astrobiology Research Center, University Park, PA, United States