# A Radio Flash 11 Billion Years Old Just Rewrote Where Bursts Come From

> MeerKAT and Webb traced the most distant fast radio burst ever seen to a small, metal-poor galaxy in a star-forming frenzy.

- Published: 2026-10-12
- Topic: [Space](https://futuretechnologyhq.com/topic/space/)
- URL: https://futuretechnologyhq.com/article/fast-radio-burst-11-billion-years-old-record/
- Publisher: [Future Technology](https://futuretechnologyhq.com/), free to read. Quote as "Future Technology" with a link to the article.

## Key points

- FRB 20240304B is the most distant fast radio burst seen, more than doubling the old record
- MeerKAT caught it and Webb traced it to a galaxy about 11 billion light-years away
- The host is small, metal-poor and forming stars intensely, which favours one magnetar origin theory
- The result was published in Science on 8 October 2026

## Article

A signal that lasted a few milliseconds has just done something astronomers rarely get: it has more than doubled a distance record and handed them a surprise at the same time.

The burst, catalogued as FRB 20240304B, was first caught by South Africa's MeerKAT radio telescope. NASA's James Webb Space Telescope then did the hard part and tracked it to its home galaxy, about 11 billion light-years away. The light left that galaxy when the universe was roughly 3 billion years old. The findings were published in the journal Science on 8 October 2026.

## Why the host galaxy is the real story

Fast radio bursts are brief, enormously energetic flashes of radio waves. We have seen plenty, but pinning one to a specific galaxy is difficult, and doing it at this distance is harder still. Nobody knew what kind of place would be hosting a burst from that far back.

The answer is not what many expected. The host is small and metal-poor, and it is in the middle of an intense burst of star formation. That is a young, scrappy sort of galaxy, not the polished spiral you might picture.

## Magnetars are still the leading suspect

The prime suspects for FRBs are magnetars, neutron stars with magnetic fields of staggering strength. There are two main ideas for how they form. One is the violent death of a massive star. The other is the merger of older neutron stars. A galaxy that is busy making massive stars and has had little time to age fits the first route far better, which gives that theory a useful nudge.

It is one burst, so nobody should declare the debate over. But a single well-located example at this distance is worth more than a dozen mystery signals with no address.

## Why you should care

FRBs are also tools. As a burst travels, intervening gas delays its signal by different amounts at different frequencies. Measure that delay and you can weigh the matter between us and the source, including the thin gas between galaxies that is almost impossible to see any other way. A burst from 11 billion light-years away is a probe through most of cosmic history.

The practical takeaway is that radio arrays like MeerKAT, paired with Webb's follow-up, are turning one-off flashes into a proper map of the early universe. Expect more bursts to get addresses, and expect the theories to get narrower as they do.

## Sources

- [Space.com on the record FRB](https://www.space.com/astronomy/galaxies/james-webb-space-telescope-helps-detect-the-most-distant-fast-radio-burst-ever-seen-and-scientists-are-surprised-by-its-source)
- [University of Manchester](https://www.manchester.ac.uk/about/news/uk-astronomers-help-reveal-host-galaxy-of-most-distant-fast-radio-burst/)