Source: wikibot/gamma-ray-burst-precursor
= Gamma-ray burst precursor
{wiki=Gamma-ray_burst_precursor}
Gamma-ray bursts (GRBs) are some of the most energetic and luminous events in the universe, typically associated with the collapse of massive stars or the collision of neutron stars. A GRB precursor refers to an event or series of events that occur prior to the main burst, potentially providing signals or indications that a GRB is about to happen.