The new paper argues that, in SN 1181, the first phase of the supernova fizzled out and left behind an unusually active ...

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

Astronomers report a strange cosmic blast that looked like a kilonova, then behaved like a supernova, hinting at a possible first “superkilonova” and leaving scientists debating how stars truly die.

Learn about what may be the first ever superkilonova ever observed, emitting gravitational waves that hint at the collision of two dead stars.

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

Many stars die spectacularly when they explode as supernovae. During these violent explosions, they leave behind thick, ...

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.

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

The rare blast peeled back the inner layers of a dying star, offering clues to how the elements that make up life on Earth were forged. By Jonathan O’Callaghan Carl Sagan once said we are all made of ...

Discover the fascinating phenomenon of superkilonova, a rare cosmic explosion resulting from neutron star collisions, producing heavy elements.

Astronomers using the James Webb Space Telescope have detected the most distant supernova ever observed, offering new ...