The cosmos has a way of rewriting its own rulebook, and a single blast of high-energy light has just forced astronomers back to the first page. Earlier this year, a gamma-ray outburst that raged for ...

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

The longest gamma-ray burst ever recorded did not behave like a quick cosmic flash. Instead, it burned across the sky for ...

New images reveal that stellar eruptions unfold in chaotic stages, with twisting outflows and late ejections that power ...

An immensely powerful flash detected earlier this year was created by a massive star exploding when the universe was just ...

A seven-hour gamma-ray burst, GRB 250702B, stuns astronomers and hints at powerful new cosmic engines still unknown to science.

The telescope captured near-infrared light from one of the earliest stars seen to explode in the history of the universe.

Astronomers at the University of North Carolina at Chapel Hill have helped uncover new clues about the longest-lasting cosmic ...

A Rutgers astrophysicist is helping to solve a cosmic puzzle that has astronomers scratching their heads. The mystery centers ...

A brilliant flash from deep space once baffled scientists. But now, that mystery has been solved—and it reshapes what we know about the universe’s heaviest elements. Back in December 2004, a massive ...

They were first spotted in the late 1960s by satellites designed to ferret out secret thermonuclear tests by the Chinese and Soviets, but some of the bursts of high-energy gamma rays picked up by ...