Astronomers hear repeating radio burst from nearby galaxy

Fast Radio Bursts, or FRBs for short, are something of an anomaly for astronomers. We've been able to detect these powerful blasts of radio energy from distant locations in space, but nobody really knows for sure what causes them. FRBs are often one-hit wonders, appearing in an instant and then never are heard from again. One FRB in particular, labeled FRB 121102, is famous for repeatedly showing up, and researchers have been studying it for some time. Now, a new repeating FRB has appeared on sc...