Astronomers Detect a Radio “Heartbeat” Billions of Light-Years from Earth

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Astronomers from different parts of the world have detected a strange radio signal, which is classified as a fast radio burst, or FRB. The signal is labelled as FRB 20191221A, and is currently the longest FRB detected in a clear and periodic pattern. “[E]xactly what that source might be remains a mystery, though astronomers suspect the signal could emanate from either a radio pulsar or a magnetar, both of which are types of neutron stars — extremely dense, rapidly spinning collapsed cores of giant stars. Read full article here

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