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StarTalk: Time Travel

14 Sep 2009, 10:00 UTC
StarTalk: Time Travel
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Time marches on? except in astrophysics. Einstein taught us that time is a coordinate in space, and it's all relative. Learn about the weird physics of our universe that could make time travel possible. Standing in for Lynne Koplitz this week is J. Richard Gott, author of "Time Travel in Einstein?s Universe".

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