Young surface of Pluto’s Sputnik Planitia caused by viscous relaxation

Qiang Wei1, Yongyun Hu2, Yonggang Liu3, Douglas N.C. Lin4, Jun Yang1 and Adam P Showman5, (1)Peking University, Beijing, China, (2)Peking University, Department of Atmospheric and Oceanic Sciences, Beijing, China, (3)Peking University, Atmospheric and Oceanic Sciences, Beijing, China, (4)University of California Santa Cruz, Santa Cruz, CA, United States, (5)University of Arizona, Tucson, AZ, United States