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

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

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old.

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

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

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

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

In 1181 AD, a bright "guest star" was observed to linger in the sky for around six months. Nearly 850 years later, the likely ...

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 ...

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 ...

Astronomers say they've captured the clearest look yet of a star on the brink of supernova. An international team used NASA’s James Webb Space Telescope to backtrack and find the original star that ...