Rendering of the planet Mars partially obscured by darkness

Earth, environmental, and planetary sciences’ Steven Hauck comments on Mars’ top layer

Mars lander spots deep layers beneath the surface, offering clues to the planet’s formation

ScienceSteven Hauck, chair of the Department of Earth, Environmental, and Planetary Sciences at the College of Arts and Sciences, commented that the top layer of Mars may reflect material ground up in the planet’s first billion years, a period of intense asteroid bombardment.