The burst seems to have been caused by a highly extraordinary event, but scientists don’t yet know exactly what that could be ...

Astronomers tracked the strangest gamma-ray burst yet. GRB 250702B is a repeating, day-long flash unlike anything seen before ...

Gamma ray bursts are the most powerful explosions in the universe, unleashing as much energy as the Sun will in its 10 ...

A newly discovered gamma-ray burst is unlike any seen before, repeating over the course of a day rather than erupting in ...

The afterglow of the gamma-ray burst as captured by the Neil Gehrels Swift Observatory's X-ray telescope. NASA/Swift/A. Beardmore (University of Leicester) On October 9, astronomers detected a bright ...

WASHINGTON — The first gamma-ray burst to be seen in high-resolution from NASA’s Fermi Gamma-ray Space Telescope is one for the record books. The blast had the greatest total energy, the fastest ...

The brightest gamma-ray burst ever seen in X-rays temporarily blinded Swift’s X-ray Telescope on 21 June 2010. This image merges the X-rays (red to yellow) with the same view from Swift’s ...

On the morning of October 9, astronomers’ inboxes pinged with a relatively modest alert: NASA’s Swift Observatory had just detected a fresh burst of energy, assumed to be coming from somewhere within ...

As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions.

The aftermath of a collapsed and exploded star, a dramatic cosmic event called a supernova. (This is *not* the collapsed star responsible for the historic gamma ray burst described below, which ...

In Battlefield Space (now streaming on Peacock!), journalist Tom Costello investigates Space Force, the most recent addition to the U.S. Military. Despite its seemingly grandiose name and space-based ...

As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions.