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13th July 2022
08:15pm BST
The large radio telescope that picked up the FRB. (Photo: CHIME, with background edited by MIT News)[/caption]
Daniele Michilli, a postdoc at the Massachusetts Institute of Technology (MIT) Kavli Institute for Astrophysics and Space Research, described it as "unusual".
He said: "Not only was it very long, lasting about three seconds, but there were periodic peaks that were remarkably precise, emitting every fraction of a second - boom, boom, boom - like a heartbeat.
"This is the first time the signal itself is periodic."
The source of this blast remains unknown - all scientists know is that it lies in a faraway galaxy located somewhere several billion light years away from planet Earth. It is thought that it could come from a radio pulsar or a magnetar, which are both types of neutron stars. These are dense, spinning collapsed cores of giant stars. What's more, is that FRB 20191221A could be used as an 'astrophysical clock', meaning scientists can use it to analyse at what rate the universe is expanding. Researchers from the Canadian Hydrogen Intensity Mapping Experiment (CHIME), the team behind the discovery, will attempt to identify more bursts from the same source, which could help confirm what is causing these FRBs. Related stories:
