Astronomers have detected a gamma-ray burst (GRB) like none other. GRB 250702B was longer than any ever observed and repeated. br br The GRB was "unlike anything ever witnessed before," according to the European Southern Observatory, who used the Very Large Telescope to study the event. br br Credit: Space.com | footage courtesy: ESOL. CalçadaN. Risinger (skysurvey.org)Digitized Sky Survey 2VISTA Hemisphere SurveyA. Levan, A.