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Health & Science2h 50m ago

Astronomers have directly detected a vast reservoir of cool molecular gas in REBELS-25, a massive star-forming galaxy seen just 700 million years after the Big Bang.

REBELS-25 (galaxy)

Who
Astronomers, Karin Cescon (Leiden University), Professor Jacqueline Hodge
What
Astronomers have directly detected a vast reservoir of cool molecular gas in REBELS-25, a massive star-forming galaxy seen just 700 million years after the Big Bang.
When
Fri, 12 Jun 2026 20:40:38 GMT · 2h 50m ago
Where
REBELS-25 (galaxy) ·
Why
This discovery provides a rare direct measurement of the star-forming fuel available to a galaxy in the early universe, helping to explain how some early galaxies grew so large, so fast.
The Frontline Impact

How this affects you

This direct detection of 100 billion solar masses of cool molecular gas in a galaxy from the early universe challenges previous astronomical understandings of star formation during the Epoch of Reionization. It offers critical insights into how galaxies accumulated matter and formed stars in the first billion years of cosmic history.

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