Did Time Start at the Big Bang?

PBS Space Time · Oct 25, 2026 · 16m

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Uploaded 18-07-19

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Our universe started with the big bang. But only for the right definition of “our universe”. And of “started” for that matter. In fact, probably the Big Bang is nothing like what you were taught.

A hundred years ago we discovered the beginning of the universe. Observations of the retreating galaxies by Edwin Hubble and Vesto…