Are we alone? It’s a question that has obsessed us for centuries, and now we have the technology to do more than wonder. Scientists on the hunt for distant planets and extraterrestrial intelligence explore faraway galaxies and barely visible realms. Nobel Laureate Sir Paul Nurse journeys to the brink of discovery with Jill Tarter, David Charbonneau, and Steven Squyres to contemplate what it would mean to have company in the cosmos.

Note: We apologize for the intermittent audio problems that are a product of the original recording of this program and not representative of typical WSF productions. Recorded June 2010; Posted October 2010