Astronomers have spotted AT2025ulz, a rare dual explosion — a supernova and a kilonova — that may be the first-ever observed ...

A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star ...

The corpse of a star -- maybe a black hole, maybe a neutron star -- pulled a living star into the land of the dead. Monisha Ravisetti was a science writer at CNET. She covered climate change, space ...

In 2006 a star exploded 50 billion times brighter than our sun. New research suggests it wasn't one star, but two. When you purchase through links on our site, we may earn an affiliate commission.

Astronomers have found dramatic evidence that a black hole or neutron star spiraled its way into the core of a companion star and caused that companion to explode as a supernova. The astronomers were ...

Two stars are on a collision course and the resulting crash will trigger one of the most powerful forces in nature: a supernova. A team of astronomers at the European Southern Observatory spotted the ...

Astronomers have detected the brightest supernova yet, twice as bright as any seen before. So bright, in fact, that the explosion released tens of times the energy that the Sun will produce in its ...

A supernova intrinsically two to three times brighter than any previously recorded has been observed, and its characteristics suggest it did not form like others of its class. It appears to have been ...

For six months in 1181, a dying star left a mark in the night sky. The striking object appeared as bright as Saturn in the vicinity of the constellation Cassiopeia, and historical chronicles from ...

Scientists have simulated the violent collisions between supernovae and its surrounding gas -- which is ejected before a supernova explosion, thereby giving off an extreme brightness. In a unique ...