- January 14, 2014Watch clips from Bill's interview with the astrophysicist and host of the new Cosmos: A Spacetime Odyssey, airing this spring.
- January 10, 2014In this clip, the acclaimed astrophysicist tells us why, when he looks up at the night sky, he feels large and connected to the universe.
- September 23, 1988 | A World of IdeasThe physicist and astronomer talks with Bill about scientific inquiry, modern breakthrough in science, and the threat of nuclear war.