Prickly Pluto Could Reveal Ice Spikes Are Common on Other Worlds

NASA's New Horizons mission has revealed, for the first time, evidence of ice features known as "penitentes" beyond Earth.

January 16, 2017
7:00 AM EST
This is "bladed terrain" on Pluto seen by the New Horizons Ralph/Multispectral Visual Imaging Camera. Images of the dwarf planet appear to show terrain consistent with a feature called penitentes (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute)