Do you Know Why Black Holes are Black Because Black holes are one of the most mysterious and powerful forces in the universe. They are formed when giant stars explode at the end of their lifecycle. This explosion called a supernova. If the start has enough mass, it will collapse on itself down to a very small size. Due to its small size and enormous mass its gravity will be so strong can escape from it even light instead all light is absorbed , and a black holes is formed.
Black holes can grow incredibly huge as they continue to absorb light and mass around them. They can even absorb others stars. We can’t actually see black holes because they don’t reflect light , but scientists know they exits by observing light and objects around black holes. A simple way to put it is that a black hole is a point in space where something exists, but because of its extreme gravity, light, cannot escape from it, and so, it is not visible under any conditions.