The brightest burst of gamma rays ever recorded was caused by the collapse and explosion of a massive star—a supernova. That’s according to a paper published last week in Nature Astronomy that used ...

A long time ago, in a galaxy far, far away, a massive star collapsed, triggering a supernova explosion so bright it could be ...

A sparkling new supernova has appeared in the night sky, and a telescope atop Mauna Kea in Hawaii was perfectly poised to capture the aftermath of the cosmic burst. The supernova was first spotted ...

When some stars die, they do not do so alone, potentially solving a long-standing mystery around a particular class of cosmic ...

When a massive star dies, it goes out with a bang, creating a stunningly bright explosion that can temporarily change the look of the night sky. The brightest and closest may be visible with the naked ...

Many stars end their lives as bright explosions called supernovae. Some of these explosions are much brighter than typical and give off up to 100 times more energy. Astronomers call these ...