A strange flash in a distant galaxy first looked like a familiar kind of stellar wreckage, the radioactive afterglow of ...

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

A team of astronomers believe they've witnessed, for the first time, a star exploding in a mythical "superkilonova." ...

A mysterious cosmic explosion linked to gravitational waves may reveal a previously unknown type of supernova event - a superkilonova.

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

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.

Caltech astronomer Mansi Kasliwal and her colleagues were not expecting to chase a mystery that blurred the line between a ...

A massive star may have burst, leaving behind two dense, dead cores, which then collided and caused another explosion ...

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

Astronomers announce evidence of a rare and unprecedented cosmic event that might represent a new type of violent explosions in the universe. The explosion is known as the 'Superkilonova.' ...

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

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