Detection of a Gamma-Ray Burst from a Nearby Source
To put it simply, GRBs are short-lived bursts of gamma-ray light. These energetic events are unpredictable and occur randomly in distant galaxies. They typically last a few milliseconds to several minutes and are hundreds of times brighter than your typical Supernova.
According to GFSC, “Evidence from recent satellites like Swift and Fermi indicate that the energy behind a gamma-ray burst comes from the collapse of matter into a black hole.” Unfortunately, seeing matter disappear into a black hole isn’t something that happens every day (Imagine).