Jim Baggott is an influential science writer. A scientist himself by training, he has turned toward a career in the commercial world as a successful author who popularizes complex scientific theories by making them, well, understandable.

His latest, Origins: The Scientific Story of Creation, is a concise history of how we got here, how life has evolved on this planet, and where life may be heading next. Baggott joins us here for an hour. We only wish that wed had more time.