Astronomers detect unusual repeating gamma-ray burst of unknown origin outside our galaxy

Summary

Astronomers have detected a mysterious gamma-ray explosion that repeated several times over the course of a day, an event unlike any previously observed. The source was located outside our galaxy using the European Southern Observatory's Very Large Telescope (VLT). While gamma-ray bursts (GRBs) are typically caused by the catastrophic destruction of stars, no known astrophysical scenario can fully explain this new GRB, whose true nature remains unknown.