When the bright star Betelgeuse explodes, it will be an impressive sight. The stellar explosion, known as a supernova, will be brighter than any planet and almost as bright as the full moon. It will ...

To estimate how close a supernova would have to be to cause serious damage to Earth, we must first look at a supernova's destructive capabilities. When the bright star Betelgeuse explodes ...

This is not to be confused with a supernova, a star's "core collapse" that leads to its complete destruction. According to NASA, that can only happen to stars about eight times the mass of our sun.

Several telescopes used to observe the supernova SN Zwicky which was magnified nearly 25 times by a foreground galaxy acting ...

When a supernova was seen glittering in the night sky for six months in 1181, it was so bright that Chinese and Japanese astronomers recorded it as a “guest star” in the Cassiopeia constellation.

Jamie Carter is an award-winning reporter who covers the night sky. A supernova called SN 2023ixf has appeared in the outskirts of a beautiful spiral galaxy in the night sky. The exploding ...

Stellar-mass black holes typically form after a star goes supernova and collapses. However, the discovery of the first-ever triple black hole system, V404 Cygni, complicates that picture. This black ...

TOKYO — When a supernova was seen glittering in the night sky for six months in 1181, it was so bright that Chinese and Japanese astronomers recorded it as a "guest star" in the Cassiopeia ...

Astronomers’ best view yet of the aftermath of a “guest star” supernova seen in 12th-century China and Japan has revealed one of the strangest objects in the heavens. It consists of hundreds ...