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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... Science http://topdocumentaryfilms.com/what-happened-before-the-big-bang/ http://topdocumentaryfilms.com/what-happened-before-the-big-bang/ 170517