Astronomers have found what they are calling a “cosmic needle in a haystack” in a galaxy next to our Milky Way. It is a dormant black hole that seems to have formed without the explosion of a dead star.
Researchers said on Monday that this black hole is different from all the others that we know of because it is “X-ray quiet.” This means that it doesn’t make a lot of X-ray radiation, which would indicate that it is eating nearby matter with its huge gravitational pull, and that it didn’t form in a supernova.
Black holes are very dense things with so much gravity that not even light can get out.
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