The transient burst signal beamed throughout the universe earlier than being picked up by the state-of-the-art CHIME telescope in Canada.
The signal, dubbed a “Fast Radio Burst” (FRB), lasted only some milliseconds earlier than disappearing once more.
Boffins consider no matter sent the extremely uncommon FRB signal is more likely to be “extremely powerful”.
Christopher Conselice, professor of astrophysics at Nottingham University, advised Mail Online: “We do not know their origin, they could possibly be brought on by various issues.
“The truth the decrease frequency FRB has been detected offers hope that we are able to perceive extra about the place they arrive from and what causes them.
“They could possibly be brought on by exploding stars, supernova, unique stars like pulsars, magnetars, neutron stars or huge black holes on the centre of distant galaxies.
“It may even be another bodily mechanism that we do not but perceive.”
He says many of the alerts come from the Milky Way, with some starting their journey billions of years in the past.
The £12.2 CHIME million telescope sits within the mountains of British Colombia’s Okanagan Valley, on the Dominion Radio Astrophysical Observatory.