Scientists discover a star, HD 254577, that survived a supernova and is now racing through space, revealing how the explosion ...

Watch the moment a star explodes in a supernova — something scientists have never directly witnessed like this before. The ...

A supernova - the explosive death of a star - is always violent, blasting material into space while typically leaving behind ...

"For the most part, massive stars make black holes. The more massive the star, the heavier the black hole," Fishbach said, until stars reach a certain mass threshold beyond which the physics of their ...

A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught ...

Not long after the supernova of 1604, the telescope was invented. But astronomers would have to wait nearly four centuries to ...

The ‘guest star’ of 185 AD has been one of astronomy's most unresolved cases for over 1800 years. Ancient Chinese chroniclers ...

It was only last October that telescopes spotted a gamma ray burst—caused by the collapse of a black hole—that was so ...

New Hubble images show the Crab Nebula is still expanding and evolving nearly 1,000 years after its original supernova ...

Astronomers may have found an exciting new clue about dark energy—the mysterious force driving the universe’s accelerating expansion. They discovered an extraordinarily bright supernova from more than ...

A supernova witnessed nearly 2,000 years ago is back in focus as NASA’s powerful X-ray telescope uncovers a hidden cosmic ...