Why are cosmic black holes so black and what do cosmic black holes look like?

It's all a black hole! Can it not be dark?

The reason why a black hole is black is because its strong gravitational pull makes it impossible for light to escape, and the strong gravitational pull also bends the space around it, forming a gravitational lens envisioned in the theory of relativity.

Because the celestial body collapses and contracts due to gravity itself, its Schwartz radius is small to a certain extent, even if the light is emitted vertically on its surface, it cannot escape, and a black hole is formed, and at this time, the celestial body will continue to contract to form a singularity, and the volume of the singularity is close to infinite, and the density is almost infinite, so its gravitational force is also close to infinity, and it will form an event horizon at the Schwarzschild radius, and once any matter enters its event horizon, there is no return. Outside the event horizon it will accrete all matter, including light, so the black hole will not only not emit light, but will not reflect light, so we can't observe it directly, so it's very dark. However, Stephen Hawking proposed that black holes radiate and that black holes have temperature (which will not be described in detail here), so there is also the saying that "black holes are not black", that is, black holes are not completely black.

Because the light is sucked in by it when it goes there, and there is no light coming out from there, so it is very.

Because its strong gravitational pull absorbs everything it can absorb, light can't run away. The reason why human beings can see bright colors is because of the existence of light, and the light is refracted to the eye to form the image we see. All the light in the black hole is sucked away and cannot be refracted in the human eye at all, so the light cannot be seen and is black.

We are able to see light because the object itself is emitting light (such as the sun) or because the object reflects light. Black holes are capable of devouring everything, including light. It doesn't glow or reflect, so he's black!

Half an hour after the black hole surface is removed is non-existent. Not to mention nothing. Black holes are antimatter, there is no time, space and mass, black holes have nothing, everything is empty, and the half hour for the black hole's surface to be deleted is a fantasy.

Black holes are owned by white dwarfs that have aged and decayed, and black holes are made up of negatively charged nuclei and positively charged electrons that collide with matter and annihilate.

Black hole descriptionA black hole is a region of space that is invisible, hence its name, because it is created when a star contracts at the end of its life, and objects in its vicinity cannot escape its gravitational pull, including light. Black holes cannot be directly observed, but they can be located indirectly by the influence of black holes on the surrounding environment. A large amount of this material is concentrated in a small area, and none of the nearby matter can escape its gravitational pull.

The Hawking radiation process reduces the mass of the black hole and hence it is also known as black hole evaporation.

According to the law of gravitation, any star has a certain escape velocity, which is proportional to the density of the star, and when the velocity of the object near the star does not exceed the escape velocity, it will be affected by the gravitational attraction of the star, and will be attached to the star (such as an object on the earth) or move in a circle near the star (such as an artificial earth satellite), when the object near the star moves faster than the escape velocity of the star, It can get rid of the shackles of the star's gravity and orbit a star higher than it in a circular motion (if the launch speed of an artificial satellite exceeds the escape speed of the earth and is lower than the escape speed of the sun, it becomes an "artificial planet" moving around the sun, and when its emission speed exceeds the escape speed of the sun, it can break away from the solar system and become an "artificial star" revolving around the center of the galaxy) and when the density of a star reaches a very high level, its escape speed can be higher than the speed of light, In this case, it is impossible for everything in the universe to get rid of its shackles, and even the light that shoots at him cannot be reflected and perceived by us because of its attraction, so the black hole observed by human beings is a black spherical celestial body, in fact, the black hole is not hollow, but a celestial body that is countless times denser than the earth. There is a speculation in modern physics that the escape speed of the universe is the propagation speed of light, so there is no matter in the universe that moves faster than light (because it has been freed from the shackles of the universe and left the universe), and the escape speed of the black hole also exceeds the speed of light, so some people speculate that the black hole is the gate connecting the universe and the universe, of course, this is just a guess, at present, black hole physics is the highest field of astronomy, and countless world's top astronomers are working hard to explore the mysteries of black holes, One of the representatives is the famous "wheelchair scientist" Stephen Hawking, who believes that with the development of science, the mystery of black holes will finally be revealed.

A black hole is caused by too much mass, too strong gravity, and no energy can be released, causing the outside to collapse inward.

This is a black hole!

Because his gravitational pull is so strong, neither people nor objects can escape his absorption, including light.

This is what we often hear about black holes.