Science & Tech · Space · 4 hrs ago
Webb Image Shows Distant Galaxies Magnified by a Galaxy Cluster
The James Webb Space Telescope imaged the galaxy cluster MACS J0454.1-030, capturing golden galaxies in detail.
The cluster is about six billion light-years away, and its gravity bends light from more distant galaxies behind it.
This effect, called gravitational lensing, magnifies distant objects, making some in the image appear more than 300 times brighter in size.
The golden galaxies belong to the cluster, while the orange and red ones lie farther away and date from earlier in the universe.
One galaxy in the image existed just 800 million years after the Big Bang, and its light suggests it was merging and forming stars rapidly.
That evidence fits the idea that mergers helped early galaxies grow and develop, eventually leading to galaxy types seen near the Milky Way today.
The James Webb Space Telescope captured a detailed image of the galaxy cluster MACS J0454.1-030 and distant galaxies magnified by its gravity.
The cluster’s mass bends and magnifies light from objects behind it, an effect known as gravitational lensing.
Some objects in the lensed area are estimated to be magnified by more than 300 times.
The red galaxies in the image existed when the universe was about 2 billion years old.
One galaxy’s light indicates it existed 800 million years after the Big Bang and was undergoing a merger that triggered intense star formation.
- Who
- The James Webb Space Telescope captured the image. Astronomers analyzed the lensed objects.
- What
- Webb imaged the galaxy cluster MACS J0454.1-030 and distant galaxies magnified by its gravity.
- When
- The article was published on 2026-10-19. The observation date is not stated.
- Where
- At the galaxy cluster MACS J0454.1-030.
- Why
- The cluster’s gravity bends and magnifies light from more distant objects, allowing astronomers to observe them.
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- Telescope
- James Webb Space Telescope
- Galaxy cluster
- MACS J0454.1-030
- Maximum estimated magnification
- More than 300 times
- Age of red galaxies
- About 2 billion years after the Big Bang
- Early galaxy
- Existed 800 million years after the Big Bang