In 1905, Albert Einstein presented his theory of relativity which shows a new vision of space and time. This theory calls into question the purpose quantum physics i.e. it reinvents the principle of gravitation. On the one hand these theories could explain all the new gravitational phenomena observed and unexplained by Newton's laws. On the other hand theory of Relativity which was introduced for us to show the existence of previously unknown stellar phenomena. It retains the black holes or singularities (Ivor, 2007).
A black hole is, by definition, a region of the universe where nothing, neither radiation nor matter can escape. It can be considered perfect black sun because it absorbs all radiation and does not allow anything to pass through it. The black hole is the star resulting from the death of the most massive stars and is somehow the most massive body in the universe, but also the most mysterious.
There are several black holes and on one hand purely mathematical black holes, just as any mass is found compressed into a smaller volume than that of a sphere with its Schwarzschild radius (in honor of the scientist who discovered the theory) . In this case, there is a black hole is not a question but a matter mass density (Valeri & Andrei, 2011). On the other hand, black holes that exist in our universe which check themselves according to the property stated by Schwarzschild. In this family of galactic black holes, there are differences in their sizes and their masses (the mass of the sun up to a billion times the mass). One thing that these black holes have in common is the similar origin and characteristics. In brief, black holes should be considered ultra dense objects which, therefore, matter curves space-time.
Key Points of the Black Holes
Black holes exist in galactic and even on the face of the earth therefore has an extraordinary density, or sometimes billions of tons per cubic centimeter. This density makes them peculiar stars, especially when they come into contact with other stars. For example, being close to a star, a hole gradually sucks the gas in this star. The star breaks down and forms a disk of matter around the black hole so that the matter disappears gradually (Valeri & Andrei, 2011). So when scientists can observe a star in the process of spinning on itself, they will see a realization of their hitherto hypothetical theory. Other observations also show significant energy radiation from unknown areas of the universe i.e. it is for most of the X-ray devices. This phenomenon can also be explained by scientists with the theory of black holes. Here is another embodiment of the theory (Brian, 2008). In fact, there is talk of a white hole explained below that anchored in the black hole itself, which makes the ray beams at the poles of the black hole.