What Happened Before the Big Bang? - Live Science

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What Happened Before the Big Bang?  Live Science

The Big Bang is commonly thought of as the start of it all: About 13.8 billion years ago, the observable universe went boom and expanded into being. But what ...

https://www.livescience.com/65254-what-happened-before-big-big.html

2019-04-17 15:14:00Z
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