Woodruff T. Sullivan III is Professor of Astronomy and Adjunct Professor of History at the University of Washington, Seattle. Trained as a radio astronomer, his research has included radio studies of the interstellar medium in our own and other galaxies, the search for extraterrestrial intelligence, and astrobiology.
John Baross is a professor in the School of Oceanography, UW. His research focuses on thermophilic micro-organisms from volcanic environments, the origin and evolution of life, life on other planets and moons, and microbial ecology. He is a founding member of UW's Astrobiology Program.