2013-04-19

[public] 1.95M views, 30.8K likes, dislikes audio only

TED-Ed

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the "multiverse."

Talk by Brian Greene.