Cosmic 'hotspots' may be evidence of a universe that existed before ours
Scientists agree that the story of the universe began 13.8 billion years ago, when everything — all the matter and energy and even space itself — emerged from the extraordinarily hot, dense cauldron known as the Big Bang. But ask a scientist what came before that first moment, and you’re likely to get a shrug. To many, thinking about a time before the beginning of time makes no sense.
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