Astronomers Detect Most Distant Fast Radio Burst Ever
The record-breaking signal provides a new tool for studying galactic evolution in the early universe.
Updated on Oct. 21, 2026 in Space
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Astronomers have detected the most distant fast radio burst (FRB) ever recorded, designated FRB 20240304B, which traveled for over ten billion years. The signal originated when the universe was only three billion years old, as confirmed by follow-up observations.
Why it matters
Identifying such a remote signal provides a new probe into the early universe, allowing researchers to study star formation and galaxy evolution in the cosmic dawn. This discovery pushes the boundaries of current detection capabilities for transient astronomical events.
FRB 20240304B is a millisecond-duration radio pulse that traversed 10 billion years of cosmic history. This observation more than doubles the distance record compared to previous detections.
The players
MeerKAT
A radio telescope array in South Africa designed to map the hydrogen distribution and transient events in the radio sky.
James Webb Space Telescope
An infrared space observatory tasked with observing the first light in the universe and the evolution of early galaxies.
SKA Observatory
A next-generation radio astronomy organization based in Australia and South Africa currently developing infrastructure for unprecedented sensitivity.
The details
The signal was captured by the MeerKAT radio telescope in South Africa as part of the MeerTRAP project. Researchers subsequently used the James Webb Space Telescope—a space-based observatory utilizing infrared imaging and spectroscopy—to pinpoint the host galaxy. This host is a small system currently undergoing active star formation while possessing a low abundance of elements heavier than helium, providing data on the chemical state of early galaxies.
Timeline
The signal was emitted approximately 10.8 billion years ago.
The discovery was published on October 21, 2026.
The Tech Race
This detection extends the range of the MeerTRAP project, which monitors the radio sky for transient pulses. It sets a new milestone that researchers intend to exceed by targeting even earlier generations of stars with the upcoming SKA Observatory.
While this discovery is purely foundational, it validates the efficacy of combining ground-based radio arrays with infrared space-based spectroscopy. The capability to detect such faint signals serves as a benchmark for future radio astronomy instrumentation and software pipelines.
The takeaway
This discovery confirms that high-energy radio transients were active when the universe was less than a quarter of its current age. The field is now focused on utilizing the upcoming SKA Observatory to push detection limits toward the very first stars.
Further reading
For broader context on the evolution of the early universe, explore our Space section.
Source note: This article includes information reported by PlusNews.
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