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

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

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. The event was first signaled by a gamma-ray burst and later confirmed ...

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

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

Astronomers have observed the calamitous result of a star that picked the wrong dance partner. They have documented what appears to be a new type of supernova, as stellar explosions are known, that ...

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

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 ...