An attempted armed robbery in West Hollywood went horribly wrong for a would-be thief who targeted a retired wrestler, ...

In a remarkable cosmic event, astronomers have detected a black hole-star merger that has resulted in the longest gamma-ray ...

Astronomers recorded the longest gamma-ray burst in history, GRB 250702B, that may be a cosmic event completely new to ...

This July, astronomers were left reeling by an event unlike anything seen before: a gamma-ray burst (GRB) that repeated four ...

When space telescopes blazed with high-energy radiation for hours earlier this year, astronomers suspected that they were ...

An ultra-fast flash from the galaxy M82 reveals what may have been a rare "extragalactic magnetar giant flare." ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film version of ...

A bright flash of gamma rays from the constellation Boötes that lasted nearly one minute came from a kilonova, as we described in a new paper. This finding challenges what astronomers know about some ...

A tremendous cosmic explosion 2.4 billion light years away temporarily changed the electric field in Earth’s ionosphere (the electrically-charged upper layer of our atmosphere that helps shield life ...

A surprisingly short gamma-ray burst has astronomers rethinking what triggers these celestial cataclysms. The Fermi Gamma-ray Space Telescope detected a single-second-long blast of gamma rays, dubbed ...

A sudden brightening in observations of the oldest known galaxy has a rather disappointing explanation. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

A peculiar cosmic explosion first detected by NASA’s Swift observatory on Christmas Day 2010 was caused either by a novel type of supernova located billions of light-years away or an unusual collision ...