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When was cosmic dawn? Some of the most distant galaxies known hold a clue

Still of a video showing the formation and evolution of the first stars and galaxies

A snapshot of galaxies and stars evolving a few hundred million years after the Big Bang (image extracted from a simulation). Gas filaments are depicted in purple, starlight in white, and highly energetic radiation from the most massive stars in yellow. Credit: Harley Katz, Beecroft Fellow/Univ. Oxford

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Nature 595, 152 (2021)




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