A black hole is a region of space from which nothing, not even
light, can escape. A black hole is formed when a star explode. This is called supernova. After the star explode, it will form 1 of these forms, Neutron star or black hole.A black hole will suck everything near it and fuse with other black hole in order to create a super massive black hole. each galaxy may have 1 super massive black hole in the center of a galaxy. Normally we can't see black holes with naked eye. We need to use X-ray to see it. Some says if we human successfully escaped from black hole we will be invisible. But no one knows the real about this.
