"Misty Moons" — a Baby Galaxy Seen 400 Million Years After the Big Bang, Forming Stars in Giant Clumps
Astronomers have peered back to when the universe was barely 400 million years old and found a galaxy unlike the orderly spirals of today. Nicknamed "Misty Moons", it is forming its stars not in a smooth disc, but in a handful of giant, dense clumps.
The discovery was made with the James Webb Space Telescope (JWST) and the magnifying power of a massive galaxy cluster sitting between us and the young galaxy. It was reported on 6 November 2026, and the findings appeared in The Astrophysical Journal on 19 October 2026.
A cosmic magnifying glass
The galaxy is enormously distant — at a redshift of about 11 to 12, seen as it was roughly 370 to 410 million years after the Big Bang, when the universe was less than 3 percent of its current age of about 13.8 billion years. At that distance, a young galaxy would normally be far too small and faint to see in any detail.
But Misty Moons sits behind the galaxy cluster MACS J0257.1-2325, whose gravity bends and magnifies the light passing through it, like a giant lens in space. A team led by Minami Nakane of the University of Tokyo found it in JWST Near Infrared Camera (NIRCam) images of the cluster taken in 10 colour filters, along with older Hubble images in three filters. The data come from the VENUS survey (Vast Exploration for Nascent, Unexplored Sources), a large JWST programme mapping early galaxies through lensing.
The magnified images show the galaxy as two bright blobs — two views of the same galaxy, bent into different shapes by the cluster's gravity. Once the lensing was undone, both views showed the same structure, confirming the clumps are real.
Stars forming in clumps
Each clump holds about 10 million times the mass of the Sun in young, dust-poor stars, aged 40 to 70 million years. The clumps resemble the young massive star clusters seen nearby, and the team says they may be proto-globular clusters — young versions of the ancient balls of stars that orbit the Milky Way today.
That is the real news here. This is not a new distance record: the excitement is the resolved internal structure — the first clear look at how stars were grouping together in a galaxy so early in the universe's history.
There is one honest caveat. The central clumps are bright and compact enough that the team cannot exclude a contribution from an actively feeding supermassive black hole — some of the light, and possibly some of the inferred star formation, could come from matter falling into a black hole rather than from stars. And the redshift of 11 to 12 is estimated from how the galaxy's light fades at shorter wavelengths; future spectroscopy could pin down the distance and reveal the chemical fingerprints of its young stars.
Why it matters
For students, Misty Moons is a beautiful example of two ideas working together: a telescope that sees the faint infrared light of the early universe, and gravity itself acting as a lens to magnify it. The early universe was not a tidy place — it was clumpy, crowded and still taking shape, and we can now watch that process in action.
If your child looks up at the night sky and wonders how galaxies began, a first lesson in astronomy can start with this baby galaxy and its giant star clumps, and end with how a cluster of galaxies can act as nature's own telescope. Book your first lesson
Sources:
- Minami Nakane et al., "VENUS: A Strongly Lensed Clumpy Galaxy at z ~ 11–12 Behind the Galaxy Cluster MACS J0257.1-2325", The Astrophysical Journal, 19 October 2026. Preprint: https://arxiv.org/pdf/2511.14483
- News report, 6 November 2026: https://worlddailynewshub.blogspot.com/2026/11/misty-moons-galaxy-early-universe-star-formation-2026.html
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