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Stephen Hawking:
Questioning the universe

TED2008 · 10:12 · Filmed Feb 2008

In keeping with the theme of TED2008, professor Stephen Hawking asks some Big Questions about our universe — How did the universe begin? How did life begin? Are we alone? — and discusses how we might go about answering them.

Theoretical physicist
Stephen Hawking's scientific investigations have shed light on the origins of the cosmos, the nature of time and the ultimate fate of the universe. His bestselling books for a general audience have given an appreciation of physics to millions. Full bio