Space Weathering of Icy Volatiles at Mercury due to Cusp Precipitation in North Polar Permanently Shadowed Regions

David Schriver, University of California Los Angeles, Physics and Astronomy, Los Angeles, CA, United States, Pavel Travnicek, University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States, Mona Delitsky, California Specialty Engineering, Pasadena, CA, United States, George C Ho, Johns Hopkins University Applied Physics Laboratory, Laurel, United States and Nicole Echterling, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States