The GuardianThe Guardian

James Webb telescope detects evidence of ancient ‘universe breaker’ galaxies

By Hannah Devlin

22 Feb 2023 · 2 min read

Editor's Note

The Guardian reports on the discovery of galaxies larger and more mature than scientists had thought possible, bringing into question our understanding of the dawn of the universe.

The James Webb space telescope has detected what appear to be six massive ancient galaxies, which astronomers are calling “universe breakers” because their existence could upend current theories of cosmology.

The objects date to a time when the universe was just 3% of its current age and are far larger than was presumed possible for galaxies so early after the big bang. If confirmed, the findings would call into question scientists’ understanding of how the earliest galaxies formed.

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