Professor of Planetary Astrophysics, University of California Riverside

JustSpace Alliance

Instituto Nacional de Técnica Aerospacial

Professor of Astronomy, University of Washington

Professor, Technical University Berlin/Washington State University

Associate Professor (with tenure), University of Chicago

Assistant Professor, University of Central Florida, Department of Physics

Senior Research Investigator, Blue Marble Space Institute of Science

University of Cambridge, Professor of Natural Philosophy

Purdue University