A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star ...

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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.

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

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

The cosmos has delivered a rare kind of fireworks display, and astronomers are racing to understand what it means. A strange double flash from a distant galaxy appears to show two neutron stars ...