Multiverse Parallel Universes

Welcome to the 11th Dimension - The Elegant Universe - PBS NOVA

Part 3 of "The Elegant Universe" with host Brian Greene shows how Edward Witten of Princeton's Institute for Advanced Study, aided by others, revolutionized string theory by successfully uniting the five different versions into a single theory that is cryptically named "M-theory," a development that requires a total of eleven dimensions.

n the beginning, there was darkness, and then, bang—giving birth to an endless, expanding existence of time, space and matter. Now, see further than we've ever imagined, beyond the limits of our existence, in a place we call The Universe.

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