Astronomers have found dramatic evidence that a black hole or neutron star spiraled its way into the core of a companion star and caused that companion to explode as a supernova. The astronomers were ...

A supernova that exploded with the brilliance of 50 billion suns may have been caused by a dense group of stars crashing together IT WAS one of the brightest stellar explosions ever seen – the ...

A supernova intrinsically two to three times brighter than any previously recorded has been observed, and its characteristics suggest it did not form like others of its class. It appears to have been ...