The discovery helps place constraints on the source of these repeating fast radio bursts.
Fast radio bursts were used as "cosmic weigh stations" to find the sparsely distributed matter.
The fast radio burst appears to have come from a galactic magnetar and has been described as a "breakthrough" for the research field.
FRB 180916 is only the second repeating fast radio burst to be traced back to its source galaxy.
This is the first time the location of a one-off fast radio burst has been detected.
A second-repeating radio signal, FRB 180814.J0422+73, was found to repeat six times from a distance of 1.5 billion light-years away.
Sky survey vastly expands the number of FRBs—radio signals produced by hugely energetic but unknown sources.
Fast radio bursts were recorded during a survey of the sky that began January 2017.
Scientists don't know what causes the weird signals.
Physicists discuss the latest discovery of 15 radio bursts coming from a galaxy three billion light years away.
Breakthrough Listen project observes 15 fast radio bursts coming from dwarf galaxy 3 billion light-years away.
Fast radio burst 150215 was detected in real-time with the Parkes radio telescope in Australia in 2015.