Ralph Keeling

Professor · UC San Diego

Ralph Keeling's research focuses on atmospheric composition, the carbon cycle, and climate change.

Atmospheric Gasses Air-sea Gas Exchange Atmospheric Oxygen Paleoclimate and Climate Change Global Carbon Cycle

David Weintraub

Professor of Astronomy; Director of Undergraduate Studies; Director of Program in Communication of Science & Technology · Vanderbilt University

Expert in astrophysics who also writes about extraterrestrial life, human space travel and space colonization.

Space colonization Extraterrestrial life Mars colonization Mars Space travel