Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a gravitational wave signal detected on Aug. 18, 2025.

A superkilonova candidate event, named AT2025ulz, was observed in 2025; LIGO and Virgo first spotted gravitational waves, ...

WASHINGTON, Nov 12 (Reuters) - The explosive death of a star - a supernova - is among the most violent cosmic events, but precisely how this cataclysm looks as it unfolds has remained mysterious.

Astronomers have released a rare time-lapse video showing the violent expansion of a dead star over two decades. The footage ...

It's just a matter of time before a dead star reignites in space 3,000 light years away. And you'll be able to see it with the naked eye despite the distance. Astronomers say when the explosion ...

A star system in our own galactic neighborhood is poised to put on a show so bright it could briefly rival the planets and even shine in daytime skies. Astronomers are watching for a sudden eruption ...

Hypervelocity stars (HVS) are celestial bodies moving at speeds sufficient to escape the Milky Way's gravitational pull, with a primary proposed origin involving binary star interactions with the ...

The supernova was the death of a red supergiant star 500 times larger than the sun, in a galaxy just 22 million light-years away. When you purchase through links on our site, we may earn an affiliate ...

CC0 Usage Conditions ApplyClick for more information. White dwarfs are some of the Universe's most stable stars, lasting for billions of years. A white dwarf can pull matter from a companion star ...