An extraordinarily powerful "superluminous supernova" that occurred 10.5 billion years ago is the most distant star explosion ever observed, a new study reports. The Big Bang occurred about 13.8 ...

A bizarre star may have its origins in one of the most energetic events in the cosmos. Astronomers have found that a star with a very unusual composition may have formed in the wake of a new type of ...

Violent explosions of massive, magnetized stars may forge most of the universe’s heavy elements, such as silver and uranium. The ancient star’s elements aren’t from the remnants of a neutron star ...

Unlike our Sun, which is a relatively low mass star and which will gradually fade before expanding into a red giant at the end of its life, larger mass stars undergo extreme explosive events when they ...