A 9-billion-year-old signal could help explain dark energy
Researchers used 94 nights of observations to detect hydrogen emission from when the universe was about five billion years old.
- Astronomers detected the most distant fast radio burst ever recorded, dubbed FRB 20240304B, originating more than 10 billion years ago from a tiny, young galaxy in the universe's early stages.
- Fast radio bursts are a mystery scientists have pursued for almost 20 years since their discovery, releasing as much energy as the Sun emits in three days despite lasting only a fraction of a second.
- Researchers tracked the burst using the MeerKAT radio telescope in South Africa, then confirmed its origin with the James Webb Space Telescope; the host galaxy contains only about 10 million times the Sun's mass, 1,000 times smaller than expected.
- Manisha Caleb, lead author from the University of Sydney, Australia, stated the data suggests the burst is "very unlikely that this was produced by a merger," supporting magnetar theory instead.
- Scientists aim to find many more distant bursts to use as cosmic signposts, enabling researchers to better understand how matter spreads through the universe, how galaxies grow, and how cosmic expansion changed over time.
27 Articles
27 Articles
A recently detected radio signal has been traveling towards Earth for more than 10 billion years. It has also been possible to find out where it came from.
A 9-billion-year-old signal could help explain dark energy
A Canadian radio telescope has detected the faint glow of hydrogen from billions of years ago using only its own observations, proving a long-awaited way to map the distant universe can actually work. CHIME can use this hydrogen signal to trace how matter is spread across space and measure how the universe has expanded over time, offering a powerful new way to investigate dark energy.
The Independent
The Independent (US)Scientists trace radio burst to a 10 billion-year-old distant galaxy
The discovery marks the most distant ever galaxy of origin for such a signal in almost 20 years of research
The British press reported the discovery of a high-range, high-speed radiocast that occurred when the universe was about 3 billion years old. Astronomers recorded a powerful FRB signal, with a distance of more than twice the previous record, transmitting TASS with reference to The Guardian. Radovsplsk, more than 10 billion years ago. It was detected by the South African radio telescope MeerKAT. After that, scientists used the James Webb Space Te…
An intense impulse from where radio is over 10 billion years old and traveled "about 80% of cosmic history," reports The Guardian. "A long time ago, in a very, very distant galaxy, a mysterious explosion of energy was released into the universe. Astronomers now detected with the radio telescope...
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