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

A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star ...

The supernova was the death of a red supergiant star 500 times larger than the sun, in a galaxy just 22 million light-years away. When you purchase through links on our site, we may earn an affiliate ...

WASHINGTON, Nov 12 (Reuters) - The explosive death of a star - a supernova - is among the most violent cosmic events, but precisely how this cataclysm looks as it unfolds has remained mysterious.