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

"This was many times more energetic than any similar event and more than any known explosion powered by the collapse of a ...

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

Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments, the U.S.

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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 ...

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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 ...

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." When you purchase through links on our site, we may earn an ...

New 911 audio, shared with PEOPLE on Wednesday, Jan. 7, is offering a glimpse into the harrowing scene after Greg Biffle’s ...