First dormant black hole found outside the Milky Way(1/1)

An artist's impression showing what the binary star system VFTS243 - containing a black hole and a large luminous star orbiting each other ? might look like if observed from close range. (Photo/Agencies)

Scientists have discovered an astronomical "needle in a haystack" in a galaxy neighboring the Milky Way: a special type of "quiet" black hole that could be the first of its kind to be detected outside of our galaxy.