Story perspectives

JWST's Little Red Dots Reveal Early Globular Clusters

7/28/2026

Summary

Story summary

Astronomers at Texas at Austin, led by John Chisholm and Mike Boylan-Kolchin, say JWST’s Little Red Dots are nascent globular clusters.
Identified in 2022 about 600 million years after the Big Bang, the dots faded ~1.5 billion years later and show the element pattern of globular clusters.
Mike Boylan-Kolchin suggests a supermassive star from stellar mergers produced that chemistry, which models indicate seeded later stars that grew the clusters into present-day globulars.

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Story summary

Astronomers at Texas at Austin, led by John Chisholm and Mike Boylan-Kolchin, say JWST’s Little Red Dots are nascent globular clusters.
Identified in 2022 about 600 million years after the Big Bang, the dots faded ~1.5 billion years later and show the element pattern of globular clusters.
Mike Boylan-Kolchin suggests a supermassive star from stellar mergers produced that chemistry, which models indicate seeded later stars that grew the clusters into present-day globulars.