We have done a lot of research on space and have learned a lot with the technology we have. One of the main mysteries that we haven't understood much is “the hole”. When I say “the hole” I mean the three main ones: black hole, white hole and wormhole. Each is important in its own way, but this article will focus on black holes. I will briefly cover theories involving time travel, white holes, and wormholes. The scientist who came up with the name was John A Wheeler. John invented the theory of nuclear fission. He was a student of Niels Bohr, the scientist who created a new model of the atom. John was also part of the Manhattan Project along with many other scientists. What is a black hole? A black hole is a large amount of matter packed into a very small area. Think of it this way: Imagine our sun compacted in Austin, Texas. Phenomenal cosmic power in a tiny living space. Black holes were predicted by Einstein's theory of general relativity. According to Space.com “In 1905, Albert Einstein established that the laws of physics are the same for all non-accelerating observers and that the speed of light in a vacuum was independent of the motion of all observers. This was the special theory of relativity. He introduced a new framework for all physics and proposed new concepts of space and time. Einstein spent ten years trying to include acceleration in the theory and published his theory of general relativity in 1915. In it he determined that massive objects cause a distortion in space-time, which is perceived as gravity. from a sun going into a supernova. It starts in the middle of the sun. Its mass collapses on itself giving rise to a super nova. Once the supernova occurs... in the center of the card... shocked. It is not clear how this happens. Here's one way to compare the differences between Reissner–Nordström and Schwarzschild. Close your eyes and imagine a big tall waterfall with smooth walls and at the bottom there is a hole that never ends next to that there is another waterfall this one has rocks here and there that the water hits. The two also go into the same hole. this is the difference between these two types of holes. At Reissner–Nordström the image on the right is the waterfall with rocks in front of the switch. The act of “rocks” is the repulsion of gravity. It's not as strong as the entire black hole's gravity, but strong enough to slow it down a bit. the Schwarzschild black hole enters as fast as possible. a sort of gobbling contest where you want to get as much as you can as fast as you can, but the black hole never fills up until it dies.