First dormant black hole found outside Milky Way

This dormant black hole is named VFTS 243. It is at least 9 times the mass of the sun and is about 160,000 light-years away from the earth. A black hole is a region in space where the gravitational force is so huge that not even light can escape, unlike most black holes. , dormant black holes do not emit high levels of X-ray radiation, which is why they are difficult to detect.