University of Arizona, Lunar and Planetary Laboratory

Professor of Physics and Astronomy, University of Delaware

European Space Astronomy Centre

Professor of Astronomy and Astrophysics, University of California Santa Cruz

Institute for Astronomy, University of Hawaii

Hunter College, CUNY; Center for Computational Astrophysics, Flatiron Institute

UNSW Sydney

University of Hertfordshire

Professor of Astronomy, Univ. of Rochester

Space Telescope Science Institute