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JWST Finds Massive Early Galaxy Lacks Rotation After Collision

5/10/2026

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Summary

Story summary

U.S. astronomers using the James Webb Space Telescope (JWST) found galaxy XMM-VID1-2075 shows no rotation.
The galaxy, formed as the universe was under 2 billion years old, holds many times more stars than Milky Way.
Ben Forrest of UC Davis led the May 4 Nature Astronomy paper, which used Keck data confirming the galaxy’s mass and no star formation.
Researchers suggest an opposite-spin collision cancelled the galaxy’s angular momentum, producing stellar motions.

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Story summary

U.S. astronomers using the James Webb Space Telescope (JWST) found galaxy XMM-VID1-2075 shows no rotation.
The galaxy, formed as the universe was under 2 billion years old, holds many times more stars than Milky Way.
Ben Forrest of UC Davis led the May 4 Nature Astronomy paper, which used Keck data confirming the galaxy’s mass and no star formation.
Researchers suggest an opposite-spin collision cancelled the galaxy’s angular momentum, producing stellar motions.