Asked by: Harry Gray, Halifax

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As the whole Universe was created in the Big Bang 13.7 billion years ago, the explosion took place literally everywhere, rather than at any specific place. That's what cosmological theory predicts - and it's confirmed by the fact that the heat left over from the explosion is spread evenly over the entire sky, rather than being concentrated in one particular region.


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Authors

Robert is a science writer and visiting professor of science at Aston University.

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