Professor Emeritus of Geological Sciences


He received my BA from Carleton College in 1966 and Ph.D. in Astronomy at the University of Texas at Austin in 1972. After being awarded an NRC Post-doctoral Research Associate at the NASA Ames Research Center, he became a Staff Scientist (then Senior Staff Scientist) at the Lunar and Planetary Institute (Houston). In 1984, he became an Associate Professor in the Department of Geological Sciences at Brown University and was promoted to full Professor in 1994. In addition to his research and teaching responsibilities at Brown, he serves as the Director for the Northeast Planetary Data Center,  the NASA/Rhode Island University Space Grant Consortium, and NASA/Rhode Island EPSCoR Program.

Brown Affiliations

Research Areas