In the 1960s, the United States, the United Kingdom, and the Soviet Union signed a treaty banning nuclear weapons tests ...

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

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

It’s an astronomical version of the tortoise and the hare, with the longest GRB ever recorded releasing more energy than the ...

The end of life is steeped in mystery and is generally poorly understood by the public, for instance, precisely how long does ...

Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe. These energetic bursts are typically unleashed by the incendiary ...

Astronomers have discovered the longest gamma-ray burst ever recorded, revealing that a black hole literally consumed a star ...

If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Learn more. Please also consider subscribing to WIRED After the initial discovery, ...

Down here at the bottom of our ocean of air, it’s easy to get complacent about the hazards our universe presents. We feel safe from the dangers of the vacuum of space, where radiation sizzles and ...

NASA’s Swift satellite has found the most distant gamma-ray burst ever detected. The blast, designated GRB 080913, arose from an exploding star 12.8 billion light-years away. “This is the most amazing ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

An Italian team of astronomers has observed the afterglow of a Gamma-Ray Burst that is the farthest known ever. With a measured redshift of 6.3, the light from this very remote astronomical source has ...