In recent years, astronomers have become increasingly interested in a theoretical particle known as the axion, which was ...

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." ...

Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright ...

Astronomers say they may have caught the universe pulling off a rare double feature: a stellar blast that appears to be both a supernova (the explosion of a star) and a kilonova (usually the collision ...

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

NASA’s Hubble Space Telescope captured asteroids crashing into one another in a nearby planetary system around a star some 25 ...

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

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 ...

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