Cosmic Grapes: A Baby Galaxy With 15 Star-Forming Clumps

The galaxy sits at redshift 6.072 — we see it as it was 930 million years after the Big Bang.

ALMA and JWST resolved at least 15 dense star-forming clumps inside a smoothly rotating gas disk.

The clumps, just 10 to 60 parsecs wide, pump out 70% of the galaxy's ultraviolet light.

Hubble had seen only a smooth blob; gravitational lensing plus sharper telescopes revealed the truth.

Current simulations can't reproduce so many clumps, so models of early galaxies need rethinking.