Astronomers believe they have found a rare, massive flare that erupted from an extremely magnetic dead star, or magnetar, that was bright enough to illuminate an entire galaxy. If true, the discovery ...

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 ...

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. Day and night get equal billing Monday as ...

On Oct. 9, 2022, the sky was illuminated with a spectacular display of light when the brightest gamma-ray burst ever witnessed in history, GRB 221009A, occurred. The event was visible to the naked eye ...

The GRB, called the Brightest Of All Time (or BOAT) may be powered by its strange jet structure, scientists say. When you purchase through links on our site, we may earn an affiliate commission.

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 — ...