Professor of Geochemistry, University of Science and Technology of China

University of Cambridge

Professor, Director: Centre for Planetary Habitability (PHAB) (ex CEED), University of Oslo

Northwestern University

Professor Emeritus, University of Hawaii at Manoa (USA), Visiting Scientist at CEED

Professor of Earth Science, Rice University

Professor, Swiss Federal Institute of Technology (ETH-Zurich)

PALEOMAP Project

Professor of Geoscience, University of Wisconsin - Madison

Jet Propulsion Laboratory