NASA has released an unprecedented time-lapse video showing the evolution of Kepler’s Supernova Remnant, a cosmic relic of a ...

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 ...

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

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.

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

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 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 ...

Astronomers have spotted AT2025ulz, a rare dual explosion — a supernova and a kilonova — that may be the first-ever observed ...

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