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

Stars are born, live and die in spectacular ways, with their deaths marked by one of the biggest known explosions in the universe. Like a campfire needs wood to keep burning, a star relies on nuclear ...

For more than a century, astronomers have known that some “new stars” flaring into view are not births at all but violent ...

A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, ...

A double blast of dying stars may be the first observed case of a long-hypothesized, never proven “superkilonova.” Although ...

In a strange turn of events, a supernova birthed twin baby neutron stars that merged to make a powerful kilonova.

When the most massive stars reach the ends of their lives, they blow up in spectacular supernova explosions, which seed the universe with heavy elements such as carbon and iron. Another type of ...

BERKELEY — Eta Carinae, the galaxy’s biggest, brightest and perhaps most studied star after the sun, has been keeping a secret: Its giant outbursts appear to be driven by an entirely new type of ...

Astrophysicists measured the light for exploding stars called supernovae to arrive at the most precise limits yet for the universe's composition - Copyright AFP/File ...

In a galaxy far, far away, a massive star suffered a nasty double whammy. On Oct. 20, 2004, Japanese amateur astronomer Koichi Itagaki saw the star let loose an outburst so bright that it was ...

Two new stars, or nova eruptions, have been resolved in unprecedented detail by six optical telescopes operating in unison as an interferometer. When you purchase through links on our site, we may ...