S38 E19: The Fabric of the Cosmos: Universe or Multiverse?

Hard as it is to swallow, cutting-edge theories are suggesting that our universe may not be the only universe. Instead, it may be just one of an infinite number of universes that make up the "multiverse." In this show, Brian Greene takes us on a tour of this brave new theory at the frontier of physics, showing what some of these alternate realities might be like.
Aired: 11/22/2011 | 0:53:10
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