Adam Frank
Professor of astrophysics, science commentator, and popular author · University of Rochester
Frank is a leading expert on how stars form and how they die, as well as civilizations before humans
Extraterrestrial Life Space Discoveries Life on Other Planets Civilizations and climate change Theoretical Astrophysics
Margaret Campbell-Brown
Associate Professor, Department of Physics and Astronomy · University of Western Ontario
Professor and researcher in meteor physics
Meteors Meteor showers Fireballs Comets Shooting stars