startalk 7 years ago
Neil deGrasse Tyson #Space and Time

Stephen Hawking on What Existed Before the Big Bang (2017)

In this exclusive clip, Tyson asks Hawking your standard softball interview question: what was around before the big bang? In other words, what happened before the moment the universe began? Check out Hawking’s answer: “The boundary condition of the universe...is that it has no boundary”

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