When Did Time Begin?

S05E10·6.3·July 23, 2014·1h·Science

We float along the river of time. But does that river have a source? Where did time come from? Some believe time and space are one thing, and the Big Bang started the cosmic clock. Others believe the universe existed for almost half a million "years" before light could move and time began. Still others say time is older than our universe. But what if time itself is an illusion? Incredible new experiments may hold the answer. One groundbreaking experiment gives us the power to punch holes in time…and another may create a machine that operates outside time's boundaries!

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#6In Season 5of 10 rated episodes

#37All-timeof 62 rated episodes

−0.5vs season avgSeason 5 averages 6.8

2014First airedJuly 23, 2014

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