Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic explosion ever observed, a gamma-ray burst that lasted nearly seven hours.
For as long as people have watched storms roll across the sky, lightning has inspired awe and fear. You can see the flash and ...
A cosmic explosion that lasted seven hours: this is the unusual spectacle recently observed by astronomers. Named GRB 250702B, this gamma-ray burst shattered previous duration records.