Distinguished John S. Toll Professor of Geosciences, Stony Brook University

Universities Space Resaerch Association

Johns Hopkins University Applied Physics Lab

James A. Van Allen/Roy J. Carver Emeritus Professor of Physics, University of Iowa

Evan Pugh Professor of Geosciences, Penn State University

Professor of Applied Mathematics, University of Leeds

Senior Research Scientist, Planetary Science Institute

University of Texas

Brown University

Professor of Astronomy, Cornell University