Before the Big Bang

Until recently, scientists could only guess at what lay past the edge of spacetime. But today new scientific tools are giving us the ability to peer beyond the limits of our universe and test our theories about what is there. Laura Mersini-Houghton’s ground-breaking research suggests that we sit in a quantum landscape whose peaks and valleys hide a multitude of other universes, and whose topography holds the secret to the origins of existence itself. She joins us to share a revolutionary new account of our universe’s creation.