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

A strange cosmic blast that lit up the sky in two distinct acts is forcing astronomers to rethink how stars live and die. The event, tagged AT2025ulz, appears to be the first known case where a ...

Learn about what may be the first ever superkilonova ever observed, emitting gravitational waves that hint at the collision of two dead stars. Few spectacles in space are as phenomenal as supernovae, ...

An incredible new astronomical find lets astronomers watch as two stars spiral inward toward one of the most violent events in the universe. Share on Facebook (opens in a new window) Share on X (opens ...

Gamma-ray bursts are the most powerful explosions ever detected in the Universe. They are also one of the greatest mysteries of modern astronomy, since so far no clear evidence has existed to prove ...

Few spectacles in space are as phenomenal as supernovae, but a "superkilonova" may give them a run for their money. This type of cosmic outburst is thought to arise when a supernova cascades into a ...