You may think that black holes are just empty space, but they are far from it. Black holes are made up of a large amount of material squashed into a smaller area. The black hole then creates a kind of gravitational field so powerful that even light cannot escape. The black hole forms when a large enough star dies. This is usually the final stage of a star's death. The first stage where the star turns into a white dwarf then if it's big enough it will create a supernova and explode. The explosive parts and the gravitational pull fight each other and, depending on the size of the star, it creates a black hole. With the dead remains of the supernova explosion, the star collapses in on itself to create a black hole. Because no inertia controls gravity, the black hole becomes infinitely dense. The person who coined the term black hole was a physicist named John Wheeler, who founded it in 1967. Black holes are invisible because light cannot escape, so scientists can detect the effect of nearby objects in space. Astronomers detect black holes by using radiation to detect nearby dust. Black holes are classified according to three properties: mass, spin and magnetic field. The three mass classes of black holes are stellar, supermassive and intermediate. Stellar black holes form when a number of small but dense stars collapse. The result of the collapse creates a huge amount of gravitational pull that sucks up all the dust and gas from space. These black holes have a mass approximately three times that of the Sun. Supermassive black holes are billions of times more massive than the Sun. There are three possible ways a supermassive black hole can form. The first is to form tiny black holes together. The second way of destroying the information is that it is contained in a stimulated emission of radiation, which is Hawking radiation, and this radiation shines whenever the information is taken by the black hole. Then, LASERS (Light Amplification by Stimulated Emission Radiation) create another copy that stays outside the black hole. These two scientists argue about the information paradox, that is, the struggle over the theory that black holes can attract information. This dispute has been going on between many scientists for several decades. All of these theories, however, are only supported by mathematics and physics, not by actual experimentation. Therefore, we cannot say for sure whether these theories are even slightly correct. Hopefully we can analyze black holes even deeper and fully understand these spectacular objects..