black hole is the largest single celestial body in the universe. The largest star mass can reach more than 100 times that of the sun, but super black hole can reach more than 10 billion times that of the sun. Its gravity is so strong that it can stir a galaxy, and even light will be sucked in when it reaches its vicinity.
When a celestial body is converted into a black hole, its volume will become very small. For example, turning the earth into a black hole, it will not be much larger than a peanut, but this is not its true volume, but its horizon range. It is said that there is also an singularity in the center of the black hole, which exists in the form of an energy ball, and it will be incredibly small and unimaginable.
Scientists believe that there are two main forms of black holes, one is a native black hole, and the other is a black hole formed by the supernova of massive star . Native black holes are formed at the beginning of the universe. They are formed immediately after the Big Bang of . It is estimated that the center of many galaxies may be some native black holes. They may be formed directly by some energy groups at the beginning of the Big Bang. They are generally of relatively large mass and can be born to operate a galaxy. The black holes formed by the explosion of massive stellar supernova are generally more than 30 times larger than the sun, and are smaller black holes, but there are relatively many. Scientists say that there may be at least 2 million in , the Milky Way . But for humans, there are too many mysteries of black holes, because humans have never seen their true face so far. All the videos and photos of black holes you see are what humans imagine. However, the imagined and calculated things may not be incorrect. For example, planets such as Uranus , Neptune , Pluto are all calculated first by humans, and then observed through telescopes and detectors. Black holes are the masters of the universe, and all galaxies operate under their power. So will such a powerful thing die? This question is very challenging. In fact, with regard to the outcome of a black hole, scientists currently believe that there are two results, namely, the disappearance of radiation and the end of explosion. To be specific, one is evaporated by Hawking radiation , and the other should be that the mass is too large and explodes. " Hawking radiation" is a phenomenon proposed by Hawking about the operation of black holes. He believes that although black holes are so suction strong that they do not even let go of light, they also release energy and matter in the form of radiation. He calls this phenomenon "Hawking radiation". He believes that the smaller the black hole, the faster it will radiate . It is said that the process of radiation disappearing for a black hole as big as an atom, does not take a second, but such black holes are too small and difficult to form, so black holes with very small mass basically do not exist in the universe. However, a black hole as large as the black hole in the center of the Milky Way will not disappear for a trillion years without eating and radiating. Theoretically speaking, there is still a lot of matter in the universe. All black holes have almost endless food to eat, and they are constantly "eating", so it is simply delusional to wait for the radiation of large black holes to disappear. But scientists also believe that black holes also have their own mass limits, and they cannot eat all the time. If they eat too much, they may break their own balance and explode (controversially, some people believe that may further collapse ). Perhaps this is how our universe exploded. So how much can a black hole eat to break its own balance and thus an explosion occurs? So far, humans have discovered that the largest black hole has a mass of about 17 billion suns. Some scientists estimate that the mass of the largest black hole is about 80 billion suns, which is about half of the Milky Way. However, the upper limit of the mass of a black hole is still difficult to predict, and no black hole explosion has been discovered. Therefore, no one knows how big a black hole can grow. The ending of black holes is only that, because humans still know too little about black holes, and there are too many mystery waiting for us to solve.
