The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

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 ...

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 ...