Thursday, August 6, 2026
Science

JWST study suggests a handful of 'leaky' galaxies reionized the early universe

A new study analyzing the James Webb Space Telescope (JWST) spectra of more than 1,400 galaxies suggests a surprisingly small group of "leaky" galaxies was responsible for cosmic reionization. The paper outlining this work was posted to the arXiv preprint server on July 24.

JWST study suggests a handful of 'leaky' galaxies reionized the early universe
Image: Phys.org
A new study analyzing the James Webb Space Telescope (JWST) spectra of more than 1,400 galaxies suggests a surprisingly small group of "leaky" galaxies was responsible for cosmic reionization. The paper outlining this work was posted to the arXiv preprint server on July 24.

Originally published at Phys.org

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