What happens when a black hole meets a black hole? Can black holes be seen?

I guess the question you have to ask is, can black holes fight infinitely?

All things, including black holes, cannot go to the extreme infinitely, and the extremes of things must be reversed, not only the ancients believed so, but many facts now can also prove its correctness.

Black holes also have their own opposite, the strong gravitational pull of black holes can attract matter, including light, but not all. And there are a lot of wonderful things like time tunnels, for example, we humans have discovered that there are such passages in the solar system, if our spacecraft follow this path and cruise in the stars without consuming any energy, now our experts are trying to find a full map of this passage in the solar system.

In short, black hole matter has its own exit, just like eating all day to expel it, although the complexity is the same.

So what's on the other end of him? White hole.

To put it simply, black holes are the graveyards of cosmic bodies, white holes are the birthplace of the universe, just as ocean trenches are graveyards of crustal matter, and volcanoes (both on land and on ridges) are the source of new crust. Only in this way can the material be constantly renewed and continuously developed.

No, because the black hole can only suck up the matter near him, and if it is "eaten up", there is no way to get fat again.

The density of a black hole is infinite, so it doesn't change in size.

The theory of black hole evaporation involves quantum vacuum fluctuations, simply put, the vacuum constantly produces pairs of positive and negative particles, and they are quickly annihilated, but in the vicinity of the black hole, the negative particles are easily sucked in, and the positive particles have a greater probability of escaping, which is equivalent to the black hole radiating matter.

What he's betting on is not that black holes don't exist. (I don't think so).

The large black hole eats the small black hole and becomes a black hole with an event horizon larger than the 2 black hole event horizons.

Theoretically, yes, black holes can devour all matter.

The density of the singularity at the center of the black hole is infinite, so the volume remains the same.

King and his friends bet on whether a black hole exists, and he does bet that a black hole doesn't exist. But that's not what he said when he said it, the concept of black holes didn't exist at the time, few scientists believed that black holes existed, and X-gold studied black holes. He said that if he loses the bet, then he can at least get the comfort of the bet, and if he loses, he only loses a few years of subscription money to the magazine, but he wins a huge career success, and all he bets on the existence of black holes, which is a win-win anyway.

For black hole studies, density is usually not used, and only mass and angular momentum are the characteristic quantities of black holes after they are formed. So it becomes a black hole with more mass and angular momentum. Although it has become heavier, its mass is still limited, and it can only be said that its gravitational radius has increased, but it is still relatively small for more far-reaching spaces.

Black hole evaporation means that it will slowly volatilize in an energetic state and lose mass, which is a very slow process.

Personally, I think there is only the relative and not the absolute

It collides and merges, forming a black hole with stronger gravity.

Because the black hole is very dense, it must be small in size.

Due to the extreme mass of the black hole, the repulsion of its molecules cannot be played, and it can be said that due to the collapse of the black hole, all matter is torn into matter smaller than an atom, and it seems that there is no way to determine this kind of matter now.

Black holes evaporate, but the evaporation of a large black hole is less than its absorption, and it will become larger and larger, and the evaporation of a small mass is greater than its absorption, and it will disappear.

A black hole is extremely massive, it tends to be infinitely massive, the density tends to infinity, and the volume tends to 0.

You can go and see "From Big ** to Black Hole", this is Hawking's book about black holes, hehe, but I don't understand it at all!!

Wow. I like it

If a black hole and a black hole meet, it's estimated that they'll become one.

Since the density of a black hole is extremely large, according to the formula we can know the density = mass volume, in order to make the black hole density infinite, then it means that the volume of the black hole should be infinitely small, and then the mass should be infinite, so that it can become a black hole. A black hole is a death star formed by the "extinction" of some stars, which is massive and small. But the question arises, will black holes always exist?

The answer is wrong, the black hole also has the day of extinction, because the black hole is infinitely attracted, but there will always be protons to escape the shackles of the black hole, so that over time, the black hole will slowly evaporate, and in the end it will become a white dwarf, or just **, the shock wave it produces is enough to destroy the earth more than 10,000 times. Scientists often use astronomical telescopes to image black holes. The dust it forms is a necessary substance for the formation of stars, which can preliminarily solve the answer to the formation of the solar system.

And so we enter a new cycle.

Hello! I brush points, thank you for your cooperation.

And he's going to disappear eventually, because the more massive the black hole is, the smaller it gets, and when the two black holes are together, it's going to be massive, and when it's infinite, it's gone.

When the fellow saw the fellow, his eyes were full of tears, and then, after a drive, it became a white hole. He has been a scientist for decades, and occasionally Fan Fan is confused.

The mighty will bring the small to ruin.

Theoretically, black holes cannot be seen directly. If we want to see an object directly, then the object can either emit light on its own or reflect light, and we will only see these lights (including electromagnetic waves in various bands such as visible light, radio waves, X-ray radio, etc.) when they are received by us. And black holes are like perfect black bodies, they themselves neither emit light nor reflect light, so we can't see black holes.

So, why do black holes have such special properties?

Black holes are different from physical objects like the Earth or the Sun, they are a special region of space-time. In the case of a black hole, all the particles are crushed by their own gravity, and they cannot form normal matter, but are all compressed into an infinitesimal singularity. The singularity has the mass of the entire black hole, which bends the surrounding space so that light in this region of space-time cannot escape, which is why the black hole does not emit light.

The surface of a black hole is called the event horizon, which acts like a one-way membrane in space-time, making it impossible for anything to escape from the black hole.

Although black holes cannot be directly observed, some phenomena associated with black holes can be directly observed. For example, astronomers have discovered in the universe that some stars are revolving around an invisible dense celestial body, which is most likely a stellar black hole, with a mass ranging from several times to dozens of times that of the Sun, and Cygnus X-1 is the first object to be thought of as a black hole.

In addition, supermassive black holes with masses of at least hundreds of thousands of solar masses often have a huge accretion disk around them, in which gas and dust revolve around the black hole. Because the closer you get to a black hole, the faster the matter rotates, so there is intense friction between the matter and strong electromagnetic waves, such as X-rays, visible light, and radio waves. And if these lights are close enough to the black hole's event horizon, they will move along the black hole's curved space, forming a ring of light around the black hole.

In response, astronomers are launching the Event Horizon Telescope project, hoping to be able to directly observe this gravitational lensing effect near the event horizon of a black hole.

Black holes cannot be seen because they absorb all light, so they cannot be observed with the naked eye.

The black hole can't see what it's like inside, because it's pitch black, and you can only see the hole.

No. Because the gravitational pull of a black hole is so strong that it is able to swallow light, it cannot be seen.

A person who falls into a black hole will die. The probability of a living person falling into a black hole is almost zero, and the body of a person who falls into a black hole will eventually be pulled by tidal forces, infinitely pulled, imagined as a rubber band, and if it is pulled infinitely, it will become infinitely thin.

It will be as fine as a scale smaller than the Planck scale, at this time the laws of classical physics will not work, and the state to be described by quantum mechanics belongs to the quantum superposition state (chaotic disordered state), imagine that the smallest unit at that scale is not in the form of particles, but a cloud of quantum probability strung together.

Manifestations:

Compared to other celestial bodies, black holes are very special. It cannot be directly observed, and scientists can only speculate about its internal structure. What makes black holes hide themselves is the curved space-time.

According to the general theory of relativity, space-time bends under the action of a gravitational field. At this point, the light is still traveling along the shortest path between any two points, but it is relatively bent. When passing through a dense celestial body, space-time will bend and light will deviate from its original direction.

On Earth, the distortion of space-time is minimal due to the small effect of the gravitational field. And around black holes, this distortion of space-time is very large.

In this way, even if some of the light emitted by a star blocked by a black hole will fall into the black hole and disappear, another part of the light will pass through the curved space around the black hole and reach the Earth. Observing the starry sky on the back side of a black hole as if the black hole didn't exist is the stealth of the black hole.

Here's what happens after falling into a black hole:

Research believes that if human beings fall into a black hole, it is equivalent to experiencing a terrible "torture", of course, although very terrible, but the time of this "torture" is extremely short, and the whole process may be shorter than the blink of an eye.

In other words, when you fall into a black hole, you may not have reacted back, and you may have been torn apart by the huge gravitational pull of the black hole, and your body is twisted at the same time.

Arguably, this is one of the most terrible ways to die for anyone, including anything around a black hole, but when it is sucked into by a black hole, where does it go?

It is also impossible to know this question at this time, but it is believed that black holes are most likely connected to the multiverse, which means that when we fall into a black hole, whether we survive or not, we will go to another universe.

What is a black hole:

Modern scientific research suggests that black holes are not the only way to form, for example, massive stars will form stellar black holes at the end of their lives by supernova explosions. In addition, primordial black holes are also formed by gas and dust in the early universe, and the current known types of black holes in the universe also include supermassive black holes and intermediate-mass black holes.

It seems that humans have a comprehensive understanding of black holes, but in fact they are not, because black holes do not emit light, which also led to the concept of black holes after Einstein proposed the concept of black holes, and it was not until recent years that humans successfully photographed the first black holes**.

In addition, in addition to stellar black holes, scientists are still in the stage of speculation about the formation of other types of black holes, and at the same time, it is unknown what the connection between black holes and two other unknown celestial bodies mentioned by Einstein - wormholes and white holes.

In real life, no human has ever fallen into a black hole. Only the astronaut Cooper in the movie "Interstellar" has had this experience.

What happens when an astronaut falls into a black hole, is it immortal or instantaneous? The gravitational pull of black holes is so strong that astronauts will be pulled into spaghetti and then shredded into elementary particles and even strings of energy? In fact, reality is more bizarre than fantasy, of course, everything can only stay at the stage of theoretical speculation, after all, no human beings have ever had the experience of falling into a black hole.

Scientists speculate that the moment the astronaut falls into a black hole, for him, the entire universe will be split in two, and the astronaut himself will forever advance towards the singularity. To the outside world, he seems to be a monument at the edge of the horizon, maintaining a posture of advancing towards the center of the black hole, never disappearing.

In Star Trek, Cooper fell into a black hole and was not torn apart, because he fell into an ancient and gentle black hole that is 100 million times more massive than Earth. There is a bare singularity through which matter can enter the four-dimensional space or the new universe, and the singularity of a black hole is a node of the world and space-time, with an ultra-small volume and infinite curvature of space. Cooper had actually been torn apart, but that moment was eternal, and he could live forever until the end of the universe.

Finally, we conclude that the astronaut can live forever at the moment of falling into the black hole, he changes from three dimensions to two dimensions and is kept at the boundary of the black hole, if he is lucky enough to fall into the black hole singularity, then he can be said to have entered a new world, and what appears in his eyes may be a four-dimensional space or a new universe.

Albert Einstein pointed out that the curvature of space-time of a black hole is infinite, which will seriously distort space-time, space-time to infinity, which is the "singularity" of the center of the black hole. Here time and space lose their meaning, all the laws of the universe are invalid, but no one knows what will happen when they get close to the singularity, after all, no astronaut has yet fallen into a black hole.

In the movie "Interstellar", there was a scene where astronauts approached a massive planet, where several people stayed for a few hours, but the astronauts waiting in outer space orbit spent 20 years, which is the slowing effect of time caused by strong gravity. That is, the closer you are to the black hole, the slower time becomes, and the outer part of the black hole has an event horizon, and the size of the radius is the Schwarzschild radius of the black hole.

When the astronaut is outside the event horizon, he can still escape at the speed of light, and once he enters the event horizon, he cannot escape at the speed of light, and can only slide towards the singularity at the center of the black hole. At this point, the two universes have been divided into two universes in the event horizon and outside the horizon, and the astronauts think they are moving in a straight line at a uniform speed, but the observer sees that the astronauts are getting slower and slower, and as they approach the edge of the horizon, the astronauts become completely stationary, becoming a monument in the history of human exploration.

The most interesting thing is that outside the black hole, time is one-way, and space is two-way; We can't travel back in time, but we can move back and forth; However, the space-time distortion in the black hole is too great, time becomes two-way, space becomes one-way, and the astronauts who fall into it can only move forward towards the singularity, and can never transmit information to the outside world.