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James Webb Finds Rapid Star-Forming Galaxy from Early Universe

11/22/2025

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Summary

Story summary

Astronomers using the James Webb Space Telescope discovered the galaxy SXDF-NB1006-2 dating to when the universe was less than 500 million years old.
The galaxy forms stars at a rate more than 16 times that of the Milky Way.
It drives strong gas outflows at speeds over 310 miles per second.
Gas will deplete in a few hundred million years, slowing star formation and potentially yielding a massive quiescent galaxy.

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Story summary

Astronomers using the James Webb Space Telescope discovered the galaxy SXDF-NB1006-2 dating to when the universe was less than 500 million years old.
The galaxy forms stars at a rate more than 16 times that of the Milky Way.
It drives strong gas outflows at speeds over 310 miles per second.
Gas will deplete in a few hundred million years, slowing star formation and potentially yielding a massive quiescent galaxy.