Astronomers can't explain this Fast Radio Burst that's sending signals to Earth every 16 days. Recently astronomers have come forward and said that a Fast Radio burst keeps sending signals to Earth every 16 days. One interesting recent discovery is that of a fast radio burst that made the news, and it goes by the name of FRB 180916.J0158+65. Interestingly it's made the news because every 16.3 days the signal follows a similar theme. Researchers have looked at the data and said that every four days it will spit out a burst, and then strangely it will go silent for the next 12 days.