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.

NASA has captured 25 years of observations from the Chandra X-ray Observatory showing the aftermath of Kepler’s Supernova, a ...

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 ...

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

Astronomers have released a rare time-lapse video showing the violent expansion of a dead star over two decades. The footage ...

NASA has released its longest-ever time-lapse from the Chandra X-ray Observatory, capturing the expanding remains of Keplers Supernova, one of the most powerful stellar explosions ever witnessed by ...

NASA has released a decades-long video showing Kepler’s supernova remnant evolving in X-rays, using Chandra Observatory data ...

Every year on January 6th, Christians who follow the Julian calendar celebrate epiphany, a holiday marking the visit of the Magi to the baby Jesus. But while the occasion holds deep religious ...

New high-resolution images show that novae are anything but simple stellar fireworks. One exploded with multiple gas streams colliding almost immediately, while another shockingly delayed its eruption ...

Twinkle, twinkle, little star, how we wonder . . . well, where to even begin? How do stars form from gas and dust? Why do some stars go supernova? And what the heck is the "main sequence?" We brought ...