The vast universe has countless celestial bodies, and these celestial bodies are mainly stars and planets. They can be said to be the mainstream of the universe. Under the mainstream celestial bodies, there are naturally some non-mainstream special celestial bodies, such as neutron stars, pulsars, and black holes.
Non-mainstream celestial bodies are often the most mysterious and powerful group in the universe, and the boss of this group is black holes. No celestial body can be as powerful as black holes. At least in the current space exploration of mankind, there has not been found to be more powerful than black holes. Domineering and powerful celestial body. It can be regarded as the overlord of the universe. Even a star is just a ration for a black hole. Even a photon flying at the speed of light cannot escape once it enters the horizon of a black hole.
It is precisely because of the powerful swallowing ability of black holes that even light is not let go, so it is difficult for us to directly observe the existence of black holes through the reflection of light. However, the powerful phagocytic ability of black holes is often difficult to truly hide themselves, especially supermassive black holes. Their phagocytic ability is extremely powerful. It is as easy to swallow a star as drinking water. In the process of consuming a star, the resistance of the star will burst out a strong flash of light. .
Through these flashes, that is, the existence of bright accretion disks, we can determine the existence of supermassive black holes. Of course, for those small and medium-sized black holes, it is basically difficult for us to observe them. They have no obvious accretion disks and the flashes are very weak. Unless they are very close to us, under normal circumstances, we cannot find small and medium-sized black holes.
With the current scientific and technological strength of mankind, the black holes that can be observed and discovered are limited to supermassive black holes. Sagittarius A* in the center of the Milky Way is a supermassive black hole with a mass about 4 million times that of the sun. However, this supermassive black hole in the center of the Milky Way is a relatively gentle existence in the family of supermassive black holes in the universe.
Some supermassive black holes can reach tens of billions of times the mass of the sun, and they are truly terrifying cosmic black holes. Scientists explore and observe the starry sky. The most interesting type of celestial body is the supermassive black hole. It is the most mysterious and powerful kind of celestial body in the universe. If we can study the mystery of black holes, we may be able to uncover many mysteries in the universe, even the universe. The origin and some ultimate mysteries are all related to black holes.
Black holes also have a powerful attribute that is crazy rotation. Different black holes rotate at different speeds, and some can even reach 99% of the speed of light. On November 22, 2014, scientists observed a mysterious flash coming from the depths of the universe. After analysis, the flash originated from the tidal tearing event of a supermassive black hole (mass approximately 1 million times the sun) in the center of a galaxy 300 million light-years away.
A tidal tearing event refers to the process by which a black hole swallows a star. When a star enters the black hole’s horizon, it is torn apart by strong tidal forces, and then continuously swallowed to become food for the black hole. Before a black hole eats, an accretion disk is often formed around it. The stellar material in the accretion disk is heated to an ultra-high temperature and bursts into an astonishing flash, which is called a tidal tearing flare.
The researchers found that this tidal tearing event is a good research sample, which is consistent with many theoretical predictions, and that X-rays will be exploded in a cycle of 131 seconds and lasted for 450 days. What’s incredible is that according to their calculations, this supermassive black hole actually rotates like crazy at 50% of the speed of light.
Although this speed is not the fastest in the supermassive black hole family, it is already an incredible speed. The black hole in the center of the Milky Way is far faster than this black hole, so the black hole in the center of the galaxy is very gentle. I believe that many friends understand the truth that when an object or celestial body rotates higher and higher, it will also produce a very terrible gravitational force.
The reason why a black hole is terrible is that it has a very powerful swallowing power. In addition to its powerful mass, there is also a very important factor, that is, it has an ultra-fast rotation speed. According to Einstein’s theory of relativity, as the object’s speed continues to increase, time will continue to slow down. If the object’s speed is infinitely close to the speed of light, then time is also infinitely close to stop.
From this we can draw a conclusion that the space-time around the black hole is in a distorted state, not only the distortion of space, but also the distortion of time. If this is the case, the black hole can also be regarded as a time machine, but this time machine cannot go back to the past, but can only go to the future. Someone might say, how is this possible?
In fact, the ability of a black hole to travel through time and space relies on its super-high rotation speed that is infinitely close to the speed of light. Just imagine if our spacecraft can ignore the black hole’s gravitational pull, what will happen if it enters the black hole? At this time, the spacecraft may also perform super-high rotation speeds with the black hole, and this speed may be infinitely close to the speed of light.
The speed of the spacecraft is infinitely close to the speed of light, so time will be infinitely close to stop. At this time, no matter how long the outside time has passed, for us in the spacecraft, it is only a momentary matter. When the spacecraft leaves the black hole and we return to the earth, the earth may have passed hundreds, thousands of years or even tens of thousands of years, which means that we have passed into the future.
Even if the speed of the black hole is only 50% of the speed of light, our spacecraft will move around the black hole at 50% of the speed of light, which will also slow down time. When we return to the earth, we will also find that we have come to the future earth. Of course, a black hole can only allow us to travel to the future, but it cannot return us again. Strictly speaking, it is not a real time machine. It’s just that its super-high rotation speed affects time and space, causing it to be distorted, and things in this distorted time and space will slow down time.
Scientists have seen the super-high-speed properties of black holes, so some scientists have proposed the idea of using black holes to travel to the future. Of course, the idea is beautiful, but it is not so easy to realize it. We must know that the super gravitational force of a black hole can shred everything, and our spacecraft cannot withstand the pull of the gravitational force of a black hole.
Even if the future material technology is more powerful, it may not be able to truly resist the gravitational tearing of the black hole. Therefore, if you want to truly enter the black hole and go to the future, it is important to have gravitational cancellation technology. That is, through the power of technology, to counteract the gravitational force of the black hole, so that the spacecraft entering it can be in a stable state.
This kind of technology looks incredible, but in fact it is also an application of gravity. I believe that with the rapid development of human science and technology, such a technology will be realized in the future. At that time, we can enter the supermassive black hole and travel to the future in the distorted time and space. Of course, this is a one-way journey, and you can’t come back once you go.
In fact, our current knowledge of black holes is very small, and we cannot observe small and medium-sized black holes, so we cannot study and explore them. Supermassive black holes are very far away from us. Even the black hole in the center of the Milky Way closest to the Earth is 26,000 light-years away. To reach the center of the galaxy and explore, we need to achieve super-light speed flight is possible, but for human technology, at present, we want to achieve sub-light speed flight and it will take some years to do it.
The super-light-speed flight can be said to have overturned the existing physical system. Only when our basic physics can be subverted can we hope to explore and study the super-light-speed flight technology, which is also the key to future interstellar navigation. Without superluminal flight technology, we would not even be able to travel across the Milky Way, let alone explore the entire universe.