James Tuttle Keane¹, Orkan M Umurhan², Simon Porter³, Ross A Beyer⁴, William B McKinnon⁵, Jeffrey M Moore⁶, John R Spencer⁷, Douglas P Hamilton⁸, Carver Jay Bierson⁹, Anne Verbiscer¹⁰, Joel Wm Parker⁷, Catherine Olkin¹¹, Harold A Weaver Jr¹², S Alan Stern¹³ and the New Horizons Geology, Geophysics, and Imaging (GGI) Team, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (2)SETI Institute Mountain View, Mountain View, CA, United States, (3)Southwest Research Institute Boulder, Boulder, United States, (4)NASA Ames Research Center, Moffett Field, CA, United States, (5)Washington Univ, Saint Louis, MO, United States, (6)NASA, Moffett Field, CA, United States, (7)Southwest Research Institute, Boulder, CO, United States, (8)University of Maryland College Park, College Park, MD, United States, (9)University of California Santa Cruz, Santa Cruz, CA, United States, (10)University of Virginia, Charlottesville, VA, United States, (11)Southwest Research Institute Boulder, Boulder, CO, United States, (12)The Johns Hopkins University, Laurel, MD, United States, (13)Southwest Research Institute Boulder, Dept Space Studies, Boulder, CO, United States