The Large Hadron Collider uses a 27-kilometer loop on the French-Swiss border. Black holes are created when stars larger than the sun collapse on themselves, generating so much gravity that even ...

The Large Magellanic Cloud, a close neighbor to the Milky Way, may house a giant black hole. It's the closest supermassive black hole outside of our galaxy.

Fast-moving stars in the Milky Way indicate there could be a supermassive black hole in the neighboring Large Magellanic Cloud—something that has never been detected in a smaller galaxy.