# Identification of most distant fast radio burst host galaxy

> Live situation record from CLSTR: https://clstr.news/situations/identification-of-most-distant-fast-radio-burst-host-galaxy
> Updated: 2026-10-15T08:04:34.000Z. Sources: 33. Developments: 3.

Astronomers have identified the host galaxy of FRB 20240304B, the most distant fast radio burst (FRB) ever recorded with a known location. The signal, initially detected on March 4, 2024, by the MeerKAT radio telescope in South Africa, traveled for over 10 billion years, originating when the universe was approximately 3 billion years old.

Using the James Webb Space Telescope (JWST), researchers pinpointed the source as a small, young, metal-poor dwarf galaxy characterized by intense star formation. This discovery more than doubles the previous record for a burst with a confirmed host galaxy. The JWST observations measured a redshift of 2.148, confirming the host is a tiny galaxy approximately 1,000 times less massive than those typically associated with such events.

The findings provide critical evidence regarding the origins of FRBs. The characteristics of this host galaxy support the theory that these bursts are produced by young magnetars—highly magnetized neutron stars—rather than the merger of older neutron stars, though the exact cause remains unproven.

## Claims

- Scientists identified the host galaxy of fast radio burst FRB 20240304B. (corroborated by 3 sources)
- The signal traveled for more than 10 billion years. (corroborated by 3 sources)
- The host galaxy is a small, young dwarf galaxy. (corroborated by 3 sources)
- The James Webb Space Telescope was used to locate the host galaxy. (corroborated by 3 sources)
- The burst was detected by the MeerKAT radio telescope in South Africa. (corroborated by 2 sources)
- The burst lasted only a few milliseconds. (corroborated by 2 sources)

## Timeline

### 2026-10-15: James Webb Space Telescope identifies most distant fast radio burst

The James Webb Space Telescope has located the most distant fast radio burst in a young dwarf galaxy and detected a mysterious, unexplained infrared signal in the Fornax constellation.

2 sources. https://clstr.news/cluster/james-webb-space-telescope-identifies-most-distant-fast-radio-burst

### 2026-10-11: James Webb Telescope locates most distant fast radio burst

The James Webb Space Telescope has located the host galaxy of FRB 20240304B, the most distant fast radio burst ever recorded, originating from a tiny dwarf galaxy 10 billion years ago.

11 sources. https://clstr.news/cluster/james-webb-space-telescope-locates-most-distant-fast-radio-burst-host-galaxy

### 2026-10-09: James Webb Telescope identifies most distant fast radio burst

Astronomers using the James Webb Space Telescope have identified the host galaxy of FRB 20240304B, the most distant fast radio burst ever detected, originating 10 billion years ago.

20 sources. https://clstr.news/cluster/james-webb-space-telescope-identifies-host-of-most-distant-fast-radio-burst

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Cite as: Identification of most distant fast radio burst host galaxy. CLSTR, https://clstr.news/situations/identification-of-most-distant-fast-radio-burst-host-galaxy