Astronomers Detect Most Distant Fast Radio Burst
The signal reached Earth after traveling across the universe for more than ten billion years.
Updated on Oct. 21, 2026 in Space
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Astronomers have detected FRB 20240304B, the most distant fast radio burst recorded to date. The signal originated when the universe was approximately three billion years old, doubling the previous distance record for such events.
Why it matters
This discovery provides researchers with a new window into the early universe and the conditions present during the evolution of the first galaxies. The signal offers insights into the environments where these mysterious, millisecond-long bursts are generated.
The signal originated when the universe was roughly three billion years old, representing a significant shift from the current estimated age of 13.8 billion years. This detection marks a distance record that more than doubles any previous observation.
The players
MeerKAT
This radio telescope array located in South Africa is capable of capturing high-sensitivity data as part of the MeerTRAP project.
James Webb Space Telescope
This advanced space observatory provides critical infrared imaging and spectroscopic data used to study galaxies in the deep universe.
SKA Observatory
This future international radio astronomy facility based in Australia is expected to provide unprecedented sensitivity for detecting distant signals.
The details
The burst was identified by the MeerKAT radio telescope in South Africa as part of the MeerTRAP project. Researchers subsequently used infrared imaging and spectroscopic data from the James Webb Space Telescope to pinpoint the signal to a small, active, star-forming galaxy with low heavy-element abundance.
Timeline
The signal was emitted approximately 10.8 billion years ago.
This research was published on October 21, 2026.
The Big Picture
This discovery shifts the trajectory of radio astronomy by demonstrating the capability of the MeerTRAP project to reach the early universe. It disproves the notion that fast radio bursts are only observable from relatively local cosmic neighborhoods.
The study of these distant signals contributes to the advancement of high-sensitivity instrumentation like the future SKA Observatory. This technological evolution will eventually enable more precise mapping of the universe and the conditions of its early star-forming galaxies.
The takeaway
The observation of FRB 20240304B confirms that fast radio bursts are events occurring across vast spans of cosmic time. Researchers are now looking to analyze signals from even earlier eras to better understand the formation of the first stars.
Further reading
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