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Webb Telescope Finds 300 Ancient Galaxies that Defy Cosmic Rules

University of Missouri researchers found over 67% of 300 bright objects are closer dusty galaxies, while about 7% may be ancient galaxies, challenging early galaxy formation theories.

  • A University of Missouri team used JWST infrared imaging to identify 300 unusually bright objects that may be early galaxies in deep space.
  • Researchers applied the dropout technique and spectroscopy to detect these candidates, but additional confirmations are needed to confirm their nature.
  • One object has been confirmed as an early galaxy through spectroscopy, and many bright objects challenge existing galaxy formation theories from the early universe.
  • Haojing Yan stated that even confirming a few early galaxies would force modifications to current models, noting the discovery could shift the cosmic timeline.
  • These findings imply galaxies might have formed earlier than thought, potentially altering understanding of the universe's first stars and large-scale structure.
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It includes over 2,500 galaxies, some of which are among the oldest ever seen (ANSA)

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Phys.org broke the news in United Kingdom on Tuesday, August 12, 2025.
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