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

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 ...

Twinkle, twinkle, little star. How I wonder what you, wait a minute, why are you twinkling so much? Um, guys, that's no ...

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

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 ...

What we know of the birth of a black hole has traditionally aligned with our perception of black holes themselves: dark, ...

A s the James Webb Space Telescope (JWST) continues to peer into the origins of our universe, it’s delivering a steady stream ...

NASA’s Chandra Observatory reveals a 25-year time-lapse of Kepler’s Supernova Remnant. Glowing debris expands at different ...

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

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