Related: What happened before the Big Bang? Around 13.7 billion years ago, everything in the entire universe was condensed in an infinitesimally small singularity, a point of infinite denseness ...
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It all started with a Big Bang: The quest to unravel the mystery behind the birth of the universeOver the last century or so, science has homed in on an answer: the Big Bang ... We call this a singularity. Albert Einstein's theory of general relativity describes how spacetime is shaped.
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