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Predicting The Beginning Of The Universe From The End Backwards With A Supercomputer

Cosmologists rewind at the first moment after the Big Bang, simulating 4000 versions of the universe on a giant supercomputer.

The goal is to paint a picture of the immediate aftermath of the Big Bang, when the observable universe suddenly expands 1 trillion times in size at the smallest strip of a microsecond. By applying the method used for the simulations to actual observations of the present-day universe, the researchers hope to get an accurate understanding of what this inflationary period looked like.

“We’re trying to do something like extrapolate a baby photo of our universe from the latest photo,” study leader Masato Shirasaki, a cosmologist at the National Astronomical Observatory of Japan (NAOJ), told Live Science in an email.

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