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.

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 ...

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 ...

CAPE CANAVERAL, Fla. (AP) — Scientists have discovered a gamma ray explosion outside our galaxy that’s not only exceptionally powerful, but also long-lasting. Australia approves world-first vaccine to ...

Various observatories observed a gamma-ray burst like no other at the beginning of July, which was repeated several times over the course of a day. This is reported by the European Southern ...

Astronomers have reported the discovery of an exceptionally powerful and long-lasting gamma-ray explosion beyond our galaxy. First observed in July, this unique burst of high-energy radiation is ...

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

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 — ...