onpointradio.org: "We all know the story, delivered in grade school textbooks across the country, of how the universe began. The Big Bang. Fourteen billion years ago. Space and time and everything, exploding into being in a flash, and still exploding as celestial bodies race apart across the cosmos.

Well, maybe so. But the Big Bang theory has taken its lumps in recent years.

Now, renegade physicists are making a new case. That it didn't all start in an instant. That there is no beginning, and no end. And those are fighting words in the halls of science." Guests:

Neil Turok, professor of mathematical physics at Cambridge University. He is the co-author of the new book, Endless Universe: Beyond the Big Bang

Alan Guth, professor of physics at the Massachusetts Institute of Technology. He is the author of The Inflationary Universe: The Quest for a New Theory of Cosmic Origins.

Janna Levin, professor of physics and astronomy at Barnard College. She is the author of How the Universe Got Its Spots: Diary of a Finite Time in a Finite Space.

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