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The discovery of megagalaxies offers a glimpse of the universe after the Big Bang End-shutdown

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Astronomers have discovered what appear to be massive galaxies dating to 600 million years after the Big Bang, suggesting that the early universe may have had a stellar fast track that produced these “monsters.”

While the new James Webb Space Telescope has detected even older galaxies, dating to just 300 million years from the beginning of the universe, it is the size and maturity of these six apparent megagalaxies that surprise scientists. They reported their findings on Wednesday.

Principal investigator Ivo Labbe of Australia’s Swinburne University of Technology and his team expected to find tiny baby galaxies so close to the dawn of the universe, not these giants.

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