It lasted a thousand times longer than the average gamma-ray burst. On July 2, 2025, the NASA Fermi Gamma-ray Space Telescope picked up an event that would shake decades of astrophysical knowledge.

CAPE CANAVERAL, Fla. (AP) — Scientists have discovered a gamma ray explosion outside our galaxy that’s not only exceptionally powerful, but also long-lasting. Telescopes on Earth and in space — ...

Astronomers are puzzled after detecting a mysterious repeating series of gamma-ray bursts outside our galaxy. The unknown phenomenon repeated several times over the course of a day, an event unlike ...

Astronomers are puzzled after detecting a mysterious repeating series of gamma-ray bursts outside our galaxy. Get any of our free email newsletters — news headlines, sports, arts & entertainment, ...

Chair of Bioseparation Engineering, TUM School of Engineering and Design, Technical University of Munich, Boltzmannstr. 15, 85748 Garching, Germany ...

CAPE CANAVERAL, Fla. (AP) — Scientists have discovered a gamma ray explosion outside our galaxy that’s not only exceptionally powerful, but also long-lasting. Day and night get equal billing Monday as ...