FRB 180916.J0158+65 is a repeating fast radio burst (FRB) discovered in 2018
>repeating
FRB 180916.J0158+65 seems to represent a third and new type of FRB that may be termed periodic repeater.
>periodic repeater
FRB 180916.J0158+65 emits a burst of radiation for approximately four days followed by an inactive period of about 12 days, then the cycle repeats