Is the Universe Infinite?
Andreas Albrecht, Professor of Physics, UC Davis
Greg Laughlin, Assistant Professor of Astronomy, UC Santa Cruz

Will We Ever Go to the Stars?
James Benford, President, Microwave Sciences, Inc.
Gerald Nordley, Science Columnist, Speculations Magazine

Do We Understand Human Emotion?
Paul Ekman, Professor of Psychology, UC San Francisco
Maureen O’Sullivan, Professor of Psychology, University of San Francisco

Have We Learned Anything from Experiments in ESP?
Lee Ross, Professor of Psychology, Stanford
Paul Switzer, Professor of Statistics, Stanford

Are You (Really) What You Eat?
Bruce Ames, Professor of Biochemistry & Molecular Biology, UC Berkeley
James Collman, Professor of Chemistry, Stanford

Has Earth Already Reached Its Human Carrying Capacity?
Anne Ehrlich, Senior Research Biologist, Stanford
Daniel Kammen, Professor of Energy & Society, UC Berkeley