Brian Greene on Parallel Universes and the Cosmos

Physicist Brian Greene discusses whether our universe is the only universe and explains recent science that shows our universe may be just one among many. His book The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos is a far-reaching survey of cutting-edge physics and a remarkable journey to the very edge of reality. He shows the range of different “multiverse” theories developed to explain the most refined observations of both subatomic particles and the dark depths of space.