Science

Peter Heller

December 18, 2007

Peter Heller author of The Whale Warriors: The Battle at the Bottom of the World to Save the Planet’s Largest Mammals. Peter Heller is a longtime adventure writer and contributor to National Public Radio, and a contributing editor at Outside Magazine and National Geographic Adventure.

Anna Sofaer & Brian Vallo

November 12, 2007

Anna Sofaer Archaeo-Astronomer, and author of Chaco Astronomy: An Ancient American Cosmology, and Brian Vallo of the Pueblo of Acoma tribe and Museum Director at the Indian Pueblo Cultural Center in Albuquerque.