While only 16 have ever been recorded, scientists believe there could be thousands of Fast Radio Bursts (FRBs) a day.
Spotting bursts requires painstaking analysis of data recorded during radio astronomy observations. The newly identified FRB was discovered using data-mining software developed by scientists from the University of British Columbia in Canada and University of KwaZulu-Natal in Durban, South Africa.
As they sifted through the detailed data, the researchers discovered that the FRB exhibited Faraday rotation, a corkscrew-like twist radio waves acquire by passing through a powerful magnetic field.
"We now know that the energy from this particular burst passed through a dense magnetised field shortly after it formed," said Kiyoshi Masui, an astronomer with the University of British Columbia who developed the data-mining software.
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Additional analysis of the signal showed that it also passed through two distinct regions of ionised gas, called screens, on its way to Earth. By using the interplay between the two screens, the astronomers were able to determine their relative locations.
"This significantly narrows down the source's environment and type of event that triggered the burst - and means the source of the pulse likely resides within a star-forming nebula or the remnant of a supernova," Masui added.
"Taken together, these remarkable data reveal more about an FRB than we have ever seen before and give us important constraints on these mysterious events," she said.
The findings were published in the journal Nature.