Erosion of Penitentes Under Experimental Conditions Relevant to Ice‐Covered Airless Worlds. - Berisford, D. F.; Foster, J. T.; Kosberg, J. A.; Furst, B. I.; Poston, M. J.; Daimaru, T.; Lang, M.; Backman, L.; Macias, A.; Hand, K. P. (Journal of Geophysical Research. Planets, 2021)