If we could go inside the black hole and look inside and outside, what would we see?

There are countless kinds of celestial bodies in the vast universe, and these celestial bodies will take on different forms according to their different masses. The smaller ones have asteroids, and the larger ones have planets. There are stars with greater mass, neutron stars, pulsars, black holes and so on.

If you want to say what is the most massive celestial body in the universe, I believe many people will answer that it is a black hole. Yes, a black hole is the corpse of a star, the product of a supernova explosion at the end of the evolution of a massive star. Although black holes are evolved from massive stars, they are far more powerful than supermassive stars.

The strength of a black hole depends on its mass. No one knows what the upper mass limit of a black hole is. It is possible that there is no upper mass limit at all. The powerful mass and infinitesimal volume form a high-speed rotating horizon around the black hole. As long as any celestial body or matter enters the horizon of the black hole, it can no longer escape. It will be torn up by the gravity of the black hole and fall into the center of the black hole step by step.

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Because the black hole can devour even light, the light entering the black hole can’t run out. Naturally, we can’t directly observe the situation inside the black hole, and what we can see is its horizon. A black hole is basically a celestial body with no obvious entity. All its mysteries lie in the mass singularity at its center. So many people are very curious about what’s inside the black hole, and what kind of scene it will be like to stand inside the black hole and look out?

Someone once put forward such a hypothesis: if we can take a powerful spacecraft into the black hole, and then look from the inside out, what kind of scene will we see? Many friends have put forward their own views on this issue. Some friends believe that the horizon of a black hole is a whirlpool rotating at a high speed. The closer it is to the center of the black hole, the faster the speed of the horizon is, which is almost close to the speed of light. Some even think that the speed of light can be reached in the black hole.

The rotation speed of the horizon is close to the speed of light, so that the space here is extremely distorted. When celestial bodies and matter fall in, they will be engulfed by the strong gravity, torn into fragments, and finally absorbed by the singularity in the center of the black hole. If we measure the accretion disk matter of a black hole from its appearance, we will find that it is possible that they all tend to stagnate infinitely.

According to Einstein’s theory of relativity, we can find the answer. When the speed of matter is infinite, time will gradually stop. This is caused by the slow effect of the expansion clock in the theory of relativity. So at this time, when we look at the outside from the inside of the black hole, we will see nothing.

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Some people think that although the rotation speed of the event horizon of the black hole may be infinitely close to the speed of light, the center of the black hole may not rotate at a high speed, but present a dynamic static state. When light is bent by the gravity of the black hole horizon and then enters the black hole, it may return to its normal state. At this time, we can see from the inside out that countless photons gather at the center of the black hole.

Because the light is rushing to the inside of the black hole, no photons will be emitted, so it will be dark inside. Although the center of the black hole is generally believed to have a singularity that gathers most of the matter, because all the matter in the black hole is gathering to the singularity, it will not emit anything from the singularity, so the light can not be emitted from there, so it seems that the singularity is not obvious It’s going to light up.

Another theory is that photons entering the black hole will circle at the speed of light near the event horizon, and then gradually fall into the black hole, because the escape speed of the event horizon is the speed of light, but there is no obvious boundary inside and outside the event horizon, so photons will circle in and fall into the center slowly, so near the event horizon is the brightest black hole! But because of the accretion effect, this is mainly concentrated in the inner side of the accretion disk. Although there will be other areas, the inner side of the accretion disk should be the brightest! Because photons fall from the horizon accretion disk to the central starting point, a spiral disk should theoretically be seen falling into the disk with the singularity vanishing.

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Of course, the above is just a guess. Because we know little about black holes, we know nothing about them except that they are evolved from the death of massive stars. We can observe the super-high rotation speed of the event horizon of the supermassive black hole, but we can’t know whether the rotation speed of the accretion disk in the event horizon will be the same, the closer to the center of the black hole, the faster or the slower? Or is the rotation speed in the event horizon the same as that of a star?

If we can make sure that the rotation speed of the event horizon of the black hole is faster and closer to the center of the black hole, then the black hole may not be black. This is because the internal rotation speed may reach the speed of light. At this time, time and space are meaningless, and the light is seriously distorted. The blue shift to high-energy gamma rays can’t be seen at all. In this case, it doesn’t mean that the black hole is dark inside. It may present a scene similar to that in Star Trek.

Of course, to understand the inside of a black hole and what it looks like from the inside out, you have to go into the black hole. Many people may say that the gravity of the black hole is too strong, and its accretion disk has a speed close to the speed of light. In this case, there is no detector or spacecraft that can enter it. As soon as it enters the horizon, it will be torn into pieces by the gravity of the black hole.

So what’s going to happen? Scientists once observed a massive black hole and found that a huge object entered the black hole directly. You didn’t hear me wrong. You went straight into the black hole. As we all know, it takes a long process and time for natural celestial bodies and matter to fall into the center of the black hole after they enter the horizon of the black hole. First, they have to rotate around the black hole and fall into the black hole step by step. Similar objects enter a vortex, so they can’t go in directly.

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Therefore, scientists speculate that the object that can directly enter the black hole may be an artificial object, or a probe or spacecraft of advanced civilization. Being able to be observed by the detector at such a long distance shows that the object is not small. If it is a spaceship, it may be as big as a planet. And we can observe, or benefit from the black hole horizon, where the energy is too high, the object is mapped out, just to be seen by us.

If the spaceship of alien advanced civilization can directly enter the black hole, then human beings can do it one day in the future. In fact, for scientists, the power of science and technology is powerful and omnipotent. A black hole depends on its strong gravity, but its gravity can not be infinite. If human beings grasp the mystery of gravity, they can create anti gravity devices, which can resist the effect of gravity.

If we can counteract the influence of the gravity of the black hole, then the spaceship will not be pulled by its gravity when it approaches the black hole, and it can enter the black hole directly from the center of the black hole. Some people may also say that even if the spacecraft can enter the black hole, but the information can not be transmitted. What should we do? In fact, there is no need to worry about this.

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If we develop anti gravity technology, which can counteract the gravity of the black hole into the black hole, then nature can fly out of the black hole again. Moreover, there is a quantum entanglement in the quantum technology that scientists are studying and exploring. If this can be realized, there will be no problem in the communication inside and outside the black hole. As long as we can enter the interior of the black hole, we can go directly to the center of the black hole. At that time, we will be able to understand the reason why the black hole is so domineering, and what kind of material is its center? Is it an ultra-high density object similar to a neutron star or something more mysterious that we haven’t seen before?

Although it is only a few hundred years for human beings to develop science and technology, and less than a hundred years to go out of the earth and explore the universe, the development speed of human science and technology is amazing and the potential is huge. At this rate of development, as long as we give mankind about ten thousand years of development time, it is possible to become a powerful interstellar civilization. At that time, we could travel through various galaxies and explore various mysteries of the universe, and the mysteries of black holes might also be completely solved by us. At that time, the black hole will no longer be a monster, but a helper of human beings, which will help human beings move towards higher goals.

Guys, what do you think of this? Welcome to leave a message below to discuss and express your opinions.

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