The universe is vast, with countless galaxies and celestial bodies. Some of them are special and mysterious, such as pulsars, neutron stars, black holes and so on. Of all the special celestial bodies, which one is the most mysterious must be a black hole.
For black holes, modern scientific explanation is the evolution of massive stars after death. Whether this is true or not, scientists dare not give a definite answer, and human cognition of black holes is very little. Although we can’t observe the black hole directly because of its particularity, the special Super phagocytic power of the black hole makes it difficult for the black hole to hide itself. People can easily find out whether there is a black hole in a certain location by observing the stars around the black hole.
In fact, there are many black holes in the universe. Every large galaxy like the Milky way has a supermassive black hole at its center, whose mass is several million to several billion times that of the sun. For example, the supermassive black hole at the center of our galaxy, called Sagittarius A, has a mass equivalent to 4.5 million suns.
The mass of the black hole in the center of the galaxy is huge, so its gravity is also super strong. All the matter near it, whether stars or other celestial bodies, will be engulfed by its powerful phagocytic power, because there is basically nothing near the center of the galaxy, there is no matter or celestial body, and light can not pass through here.
Why is the black hole in the center of the galaxy so powerful? Some scientists believe that this may be the result of Galaxy merging. We know that there are many star coefficients in the universe, such as the Milky way. Many galaxies often merge. The merging of galaxies also means that the black holes in the center of two galaxies are getting closer, and then the two black holes merge into a black hole. Such a supermassive black hole is born.
The time of Galaxy merging is very long, and it may last as long as 1 billion years or so. Galaxy merging is a very spectacular scene in the universe. When two huge galaxies gradually approach and rotate with each other under the force of irresistible gravity, a large amount of gas and dust in the galaxy will be released. This chaotic scene provides a chance for the black hole in the center of the galaxy to swallow.
Two black holes devour stars, gas and other matter. When a massive object falls into a black hole, due to the huge pulling force, the black hole will emit a dazzling light, which can be seen even hundreds of millions of light-years away. This is the main reason why human beings can observe these massive black holes. If they do not emit a dazzling light, human telescopes will not be able to see the scene of black hole fusion.
Scientists from Eureka scientific in Oakland, California, analyzed 385 galaxies in the Hubble Space Telescope archive data and 96 galaxies observed by the Keck Observatory, and successfully identified dozens of merging galaxies. The average distance between these galaxies and the earth is 330 million light-years, which is about the size of the Milky way. It is found that 17% of the Galactic cores have a pair of black holes, indicating that they are in the final stage of Galaxy merging. In fact, the merger of galaxies is also the fusion of two black holes. Finally, the two black holes merge into one black hole, and the two galaxies become a larger galaxy, and then wait for the future to merge the third galaxy.
So galaxies like the Milky way may have merged several times, and black holes merged, and then become what they are now. In the near future, the Milky way and Andromeda galaxy will merge. Although they are still 2.5 million light-years apart, they are approaching at a speed of 40 kilometers per hour. In a few billion years, they will finally merge into one. At this time, a black hole with more amazing mass will dominate the future Galaxy Andromeda.
The supermassive black hole in the center of the galaxy is more like a guardian to maintain the stability of the galaxy. It is just like the sun of the solar system. It uses its super strong mass and gravity to bind the stars to run according to their own orbits to avoid chaos. Without a powerful manager, the galaxies and celestial bodies in the Milky way are bound to be in a mess. And the manager of the galaxy is the supermassive black hole at the center.
Black holes have strong mass and gravity, which can effectively bind the galaxies in the whole galaxy, so that each galaxy will not be disordered and run according to its own orbit, and each small galaxy has a star boss who manages the celestial body movement of the small galaxy. Management at all levels can maintain the stability of the galaxy. So there are bigger galaxies outside the Milky way, and the Milky way also has to move around the central celestial body of this huge galaxy, so is there an unimaginable massive black hole in the center of the universe?
This is not clear. Human beings know too little about black holes. We still don’t know its origin and what its real nature and function are? Does it just allow a mysterious celestial body with powerful phagocytic power? Where did the material that it swallowed go in the end? All this is still a mystery. If we want to solve this mystery, we have to work hard to develop science and technology. When we have the ability in the future, we can go deep into the black hole to explore. We believe that we will find the truth of the black hole.
Some people may worry that in a few billion years, the merger of the galaxy and Andromeda galaxy will affect the solar system greatly. In fact, it will not affect the solar system. The solar system is a galaxy on the edge of the galaxy, which is very far away from the center of the galaxy. Even if the two black holes in Andromeda galaxy and the center of the galaxy are close to each other in the future, it will affect the nearby center of the galaxy Some of the galaxies in the world can’t relate to the distant solar system.
However, in the future, human beings will be able to see the fusion of the two galaxies more intuitively and closely, but that will be billions of years later. Perhaps at that time, the scientific and technological strength of human civilization has already been so powerful that we can’t imagine. Human civilization has become a powerful interstellar civilization, which can not only travel all over the galaxy, but also fly out of the galaxy to explore other big cities The mystery of galaxies, in case the solar system can’t survive, we can also leave the solar system to live in galaxies outside the galaxy. When the two galaxies merge and stabilize, we can go back to the Milky way.
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