Professor of astrophysics, university of Geneva

Professor of Genetics, Harvard Medical School

Phillips Professor of Astronomy, Harvard University

Rensselear Polytechnic Institute

Distinguished Professor of Biogeochemistry, UC Riverside

Evan Pugh Professor of Geosciences, Penn State University

Distinguished Professor, Department of Astronomy & Astrophysics / Institute for …

Staff Scientist, Carnegie Institution for Science

The University of Tokyo, Astrobiology Center of Japan

Space Scientist, NASA Ames Research Center