# FAST and Arecibo point to possible dark galaxy with vast hydrogen reservoir

- Source: Phys.org
- Published: 2026-10-26T10:55:00+00:00
- Category: Science
- Original: https://phys.org/news/2026-10-fast-arecibo-dark-galaxy-vast.html
- Canonical: https://groundlevelnews.com/story/fast-and-arecibo-point-to-possible-dark-galaxy-with-vast-hydrogen-rese-5e75a3/

Astronomers have found a vast reservoir of hydrogen with something conspicuously missing: detectable starlight. The object, called AGC 322753, contains roughly 2 billion times the sun's mass in neutral hydrogen, a potential supply of material for making stars. Its radio signal suggests the gas may be rotating in a disk, yet deep astronomical images reveal no matching glow.

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