Ancient Erosion Scoured Vast Region of Mars

Massive erosion shaped the surface of Mars, according to planetary scientists at Washington University in St. Louis. Brian M. Hynek, doctoral candidate in Earth and Planetary Sciences, and Roger J. Phillips, Ph.D., professor of earth and planetary sciences and director of Washington University’s McDonnell Center for the Space Sciences, suggest that an area the size of the European continent experienced an extensive erosion event caused by flowing water.