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Radio signal 9 billion light-years away: what it means and where it came from

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AND Radio signal nearly 9 billion light-years away from Earth was captured in a new image discovered by India’s Giant Metrewave Radio Telescope.

McGill University said in a press release that this is the first time this type of radio signal has been detected at such a great distance. Space.com reported that the signal could mean scientists could begin studying some of the earliest stars and galaxies.

This isn’t the first time scientists have received one mysterious signal from space.

Last July, astronomers from MIT and other universities in the US and Canada discovered a persistent signal from a distant galaxy of unknown astrophysical origin, and in 2020 a mysterious signal from Proxima Centauri was making waves.

The GMRT, one of the TIFRs (Tata Institute of Fundamental Research) and India's largest projects to date.

The GMRT, one of the TIFRs (Tata Institute of Fundamental Research) and India’s largest projects to date.
((Photo by Hemant Mishra/Mint via Getty Images))

RADIO SIGNAL DETECTED FROM 9 BILLION LIGHT-YEARS FROM EARTH

But do these signals mean that we are not alone? The answer now is no – although A deliberate signal was sent into space.

That’s what researchers said in 2021, according to Nature the Proxima Centauri signal was likely “man-made radio interference,” and the source of the “Fast Radio Burst” signal has been suggested to be either a radio pulsar or a magnetar, both of which are types of neutron stars.

A view of the surface of the planet Proxima b, orbiting the red dwarf star Proxima Centauri, which is closest to our solar system, is seen in an undated artist impression released August 24, 2016 by the European Southern Observatory.

A view of the surface of the planet Proxima b, orbiting the red dwarf star Proxima Centauri, which is closest to our solar system, is seen in an undated artist impression released August 24, 2016 by the European Southern Observatory.
(ESO/M. Kornmesser/Handout via Reuters)

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“There aren’t many things in the universe that emit strictly periodic signals,” said Daniele Michilli, a postdoc at MIT’s Kavli Institute for Astrophysics and Space Research, at the time. “Examples we know of in our own galaxy are Radio pulsars and magnetars, which spin and produce a radial emission similar to a lighthouse. And we think this new signal could be a magnetar or a pulsar on steroids.”

Pune, India, March 21, 2012: The GMRT

Pune, India, March 21, 2012: The GMRT
((Photo by Hemant Mishra/Mint via Getty Images))

In this latest case, the signal’s properties indicate that it originates from neutral hydrogen gas in a star-forming galaxy named SDSSJ0826+5630.

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McGill said so Signal was sent out from the galaxy when the universe was only 4.9 billion years old.

“That’s the equivalent of looking back 8.8 billion years,” Arnab Chakraborty, a postdoctoral researcher at McGill University, said in a statement.

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