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What Happened Before the Big Bang?

They are the biggest questions that science can possibly ask: where did everything in our universe come from? How did it all begin? For nearly a hundred years, we thought we had the answer: a big bang some 14 billion years ago.

But now some scientists believe that was not really the beginning. Our universe may have had a life before this violent moment of creation.

Horizon takes the ultimate trip into the unknown to explore a dizzying world of cosmic bounces, rips and multiple universes, and finds out what happened before the big bang.

1 hour

Last on

Thu 6 Mar 2014 23:30

Cat Watch 2014: The New Horizon Experiment

Cat Watch 2014: The New Horizon Experiment

Liz Bonnin and cat experts use GPS and cameras to follow cats in different environments.

Horizon interactive ebook

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Celebrate 50 years of Horizon with this free downloadable ebook for tablets.

Horizon archive collection

Horizon archive collection

Entire episodes chosen to celebrate the show's 50th anniversary, starting from 1964.

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