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

This article (originally published Aug. 13, 2025) has been updated to include new text and illustrations featured in the Jan.

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old. The event was first signaled by a gamma-ray burst and later confirmed ...

It's the last clearly observed supernova in the Milky Way, Gassel said.

Decades in the making, NASA's X-ray timelapse shows a stellar explosion expanding into space at up to 2% the speed of light.

Kepler's supernova remnant is extremely exciting for astronomers – a rare example of a supernova for which we have a clear ...

A scintillating spiral galaxy that played host to two supernova explosions in the past 30 years takes center stage in a new image captured by a telescope in Chile's high desert. The galaxy NGC 1187 is ...

Astronomers have created a detailed forecast of where they expect to observe future stellar explosions in a nearby galaxy, ...

(CNN) — Astronomers have observed what they are calling a new type of supernova, which has provided an unparalleled glimpse into what happens deep within a star just before it explodes. A study ...

A new video shows the evolution of Kepler's Supernova Remnant using data from NASA's Chandra X-ray Observatory captured over ...

NASA has released its longest-ever time-lapse from the Chandra X-ray Observatory, capturing the expanding remains of Keplers ...

The new paper argues that, in SN 1181, the first phase of the supernova fizzled out and left behind an unusually active ...