What exactly is a cosmic black hole?

Updated on science 2024-06-04
15 answers
  1. Anonymous users2024-02-11

    Black holes are very massive cosmic objects. Because of its mass, it also has a great gravitational pull. Ever heard of the first cosmic velocity?

    For an object to fly out of the gravitational pull of the Earth, its velocity is greater than this first cosmic velocity (. For an object to fly out of the gravitational pull of a black hole, its speed must be greater than the speed of light. In other words, light can't fly out of a black hole, because light can't come out of it (or its surface) anymore, so it's "black".

    This is where the name "black hole" may come from, right? (It should be, but it hasn't been verified.) )

  2. Anonymous users2024-02-10

    A black hole is a star that is at least 10 times larger than the Sun, and for the remaining 10% of its life, it will gradually get hotter (and release more energy). Due to its own mass, it will generate a large gravitational force; As a result, a star can only rely on its own nuclear fusion to produce energy to balance its own gravitational pull. But when its own energy is used up, its own gravity becomes the dominant force, and the lack of force to compete with it leads to the collapse of the star itself, resulting in a more complete collapse (when the mass of the star is smaller, the collapse is not so complete).

    A star the size of the Sun would only become a white dwarf, and a neutron star more than 8 times larger), thus becoming a point of infinite gravity and gravity. Any substance will be sucked in. And because of its gravitational pull, even the fastest light in the universe can't escape.

    So, if the light is not reflected, we can't see it. Therefore, it is called a black hole. Dark matter, like black holes, makes up about 90% of the total mass of the universe.

    They include white dwarfs, black dwarfs (that is, white dwarfs are completely cooled, but this will take about 100 million years), neutron stars, black holes, cosmic strings (which are the folds in cosmic space, where scientists estimate that there is no life), etc. Dark matter plays a large role, and it is able to attach to galaxies or clusters of galaxies. Thus controlling the speed of expansion of the universe. If the dark matter is more than 99%, all matter will be restored to a point.

    Therefore, dark matter is also known as cosmic glue. When you fall into a black hole, it may be due to the force of space-time distortion that will squish you in one direction and stretch you out in other directions until you look like spaghetti. But what exactly happens inside.

    Nothing is known to the current physics community. As for its shape, you can judge it according to its own characteristics, when the black hole is still a star, the maximum force of its collapse is in the center, because the force borne by the center is the largest, and it is outward in turn, so the shape of the black hole is likely to be a funnel-packed celestial body. But the reason why a black hole presents a funnel is because its body, that is, its own matter, because of its large mass and small size, produces a strong gravitational pull that distorts space-time, so it looks like a funnel.

  3. Anonymous users2024-02-09

    A black hole is a supermassive celestial body, so massive that light cannot escape, because the mass is too large, causing the curvature of space-time to be too large, forming a hole, resulting in what looks all black, so it is called a black hole.

  4. Anonymous users2024-02-08

    As we all know, black holes are the most mysterious stars in our observable universe. It can be said that black holes are ubiquitous, and there is a high probability that there will be black holes in every corner of the universe; Naturally, different black holes are very threatening.

    Most people think of black holes, perhaps, a giant in cosmic space will flash in their minds, stretch out their bloody mouths, avoid them, and swallow all the chemicals and stars; However, we need to understand that more than 50% of black holes are all small black holes, which are actually not destructive.

    When massive stars die, black holes are created. Once the stars run out, gravity will definitely have an advantage. As a result, the star gradually collapses inwards in a large way, and finally a black hole is created!

    A black hole is not really a hole, just a star. This is simply because the black hole devours all the objects that come close to it, containing light and information, and this kind of object cannot break free. Therefore, you can only see black holes, and the mass of the initial black hole can be equal to or lower than the mass on Earth.

    It is likely that this purely fabricated object was produced by the gravitational collapse of an area with high density during the eruption. A stellar-mass black hole has a mass of about 4 to 15 solar masses, and it is caused by a critical collapse at the end of the life of a massive star, and in fact it may be a myriad of intermediate-mass solar mass black holes. Rough direct evidence suggests that they are likely to exist in some star clusters and eventually grow into supermassive black holes.

    Supermassive black holes have solar masses between 106 and 109 and are located in the management centers of most large and medium-sized planets. Black holes, like neutron stars and white dwarfs, are also the material in which stars evolve. The only difference between them is that they are all materials that evolve from stars of different mass, where black holes are material that evolves from supermassive stars.

    In general, everyone understands that stars ignite themselves, like furnaces.

    A star that has just entered the main coding sequence to worship ignites a proton. This type of ignition is called a nuclear reaction, and because the mass of the star is particularly high, gravity can make the star management center particularly hot, which can be understood as the result of extrusion. In the case of sunlight, for example, the critical temperature can reach 15 million degrees.

    The greater the mass, the greater the gravity, and the critical temperature can be achieved at higher temperatures.

    All in all, black holes play the role of "scavengers" in the universe. For hundreds of millions of years, they have been constantly "eating" to maintain the stability of the cosmic order.

  5. Anonymous users2024-02-07

    Black holes are remnants of stars that have ended their lives in the form of supernovae. They are characterized by a region of space in which gravity is so strong that not even light can escape.

  6. Anonymous users2024-02-06

    It's a magical existence, and it's something that can't be explained in words, but it's been there for many years.

  7. Anonymous users2024-02-05

    I think black holes in the universe should be very empty, and the kind that has no end, it should be black, and it should be endless.

  8. Anonymous users2024-02-04

    The black hole is a particularly powerful existence, it is also very mysterious, and it does not know its true face, as long as the objects around it may be absorbed by it.

  9. Anonymous users2024-02-03

    Cosmic black hole is a physical phenomenon in the universe, as far as the universe is concerned, as long as the matter close to the black hole, including light and any form of energy wave, will be invisible because of the huge gravitational pull of the black hole, even light, can not escape the gravitational pull of the black hole.

    In other words, a black hole can suck in the entire sun or galaxy. In addition to the factors that make it up, on the other hand, it may also be because of the existence of these black holes, which creates the existence of the universe at the other end. The black hole of the universe may be a kind of conduit connection, and this link colludes with different universes.

  10. Anonymous users2024-02-02

    There is no consensus at this time.

    Black holes have an event horizon, from which classical gravitational theory says that nothing within the event horizon can escape. So, in principle, we can't know what's behind the horizon.

    At the center of the black hole is a space-time singularity. In the classical theory of gravity (general relativity), we can no longer describe this singularity mathematically. However, there is a lot of speculation, one saying that a singularity is a singularity and does not represent anything else.

    Another theory is that the singularity of the black hole connects to another universe, which may be our parallel universe or a completely different universe. Others say that this singularity is a wormhole that connects the rest of our universe.

  11. Anonymous users2024-02-01

    Is this a question that science has not yet explored, or a mystery, and if there is an answer, it is all speculation.

  12. Anonymous users2024-01-31

    No one knows what's inside, because all the scientific theories we know now are invalid inside black holes. So it doesn't define what's inside a black hole.

  13. Anonymous users2024-01-30

    Floating gravitational dust aggregates.

  14. Anonymous users2024-01-29

    Nobody knows what it is, scientists are guessing.

  15. Anonymous users2024-01-28

    Just go in and see.

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