Sharon A. Wilson¹, Nicholas H Warner², John A Grant III¹, Matt Golombek³, Catherine M Weitz⁴, Alyssa DeMott⁵, Megan Kopp⁵, Ernst Hauber⁶, Veronique Ansan⁷, Constantinos Charalambous⁸, William T Pike⁸, Heather Lethcoe-Wilson⁹ and Rachel Hausmann¹⁰, (1)Smithsonian National Air and Space Museum, Center for Earth and Planetary Studies, Washington, DC, United States, (2)SUNY at Geneseo, Geneseo, NY, United States, (3)JPL/NASA/Caltech, Pasadena, CA, United States, (4)Planetary Science Institute Tucson, Tucson, AZ, United States, (5)SUNY at Geneseo, Department of Geological Sciences, Geneseo, NY, United States, (6)German Aerospace Centre (DLR), Berlin, Germany, (7)LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France, (8)Imperial College London, London, SW7, United Kingdom, (9)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (10)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States