IMAGES. Thomas R. Watters 1 , Sean C. Solomon 2,3 , Katie Daud 1 , Maria E. Banks 1 , Michelle M. Selvans 1 , Mark S. Robinson 4 , Scott L. Murchie 5 , Nancy L. Chabot 5 , Brett W. Denevi 5 , Carolyn M. Ernst 5 , Clark R. Chapman 6 , Caleb I. Fassett 7 , Christian Klimczak 3,8 , Paul K. Byrne 3,9 , David T. Blewett 5 , 1 Center for Earth and Planetary Studies, National Air and Space Museum, Smithsonian Institution, Washington, DC 20560, USA (watterst@si.edu); 2 LamontDoherty Earth Observatory, Columbia University, Palisades, NY 10964, USA, 3 Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, USA; 4 School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85251, USA; 5 The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA; 6 Planetary Science Directorate, Southwest Research Institute, Boulder, CO 80302, USA; 7 Department of Astronomy, Mount Holyoke College, South Hadley, MA, USA; 8 Department of Geology, University of Georgia, Athens, GA 30602, USA; 9 Lunar and Planetary Institute, Houston, TX 77058, USA.