Mysterious 'fossilized' bubble 10,000 times the size of the Milky Way could be a relic from the Big Bang

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Astronomers have spotted a gigantic void they believe to be a baryon acoustic oscillation — a relic from when the universe was a fiery plasma soup.

Mysterious 'fossilized' bubble 10,000 times the size of the Milky Way could be a relic from the Big Bang : Read more