If the universe is expanding, how can there be galaxies colliding?

Updated on science 2024-05-10
14 answers
  1. Anonymous users2024-02-10

    The expansion of the universe is a macroscopic effect of the whole, and in local areas, it is quite normal for galaxies to collide because of the influence of gravity. If two galaxies are too close together, there is a high chance that they will collide. But if there is a collision between galaxies, the impact on the stars in the galaxy is not great, because the stars are very far away from each other, and even if the galaxies collide, it will not have a big impact on the stars, just like penetrating each other.

    However, it will inevitably affect the gravitational pull of the stars towards each other, causing the stars to realign. In other words, the colliding galaxies will eventually merge together under the influence of gravity. But interstellar matter in galaxies will not be so lucky, as they collide at a distance from each other and release intense radiation.

    So colliding galaxies tend to be very strong radio sources. Actually, examples of galaxies colliding are quite common. For example, NGC4676 and NGC5128 are well-known examples of galaxy collisions.

    Landlords can easily find them online**.

  2. Anonymous users2024-02-09

    。。。Although the expansion of the universe is a theory, it has basically been accepted by scientists, so let's just take it as if it's okay...

    However, although the universe as a whole is expanding, there is no guarantee that every part, all celestial bodies are escaping from each other, for example, the Earth is not getting farther and farther away from ......the sun, and in fact, the Andromeda Nebula is approaching the Milky WaySimilarly, if the gravitational pull of two (or more) galaxies attracts each other, and this gravitational pull exceeds the centrifugal force of their rotation, then they must be close to each other. If they meet in orbits close to each other, then they collide, and if they just pass by, then nothing will happen :)

  3. Anonymous users2024-02-08

    The second floor and the third floor are all right, and by the way, in tens of thousands of years, the barley and wheat clouds will be swallowed up by the Milky Way.

  4. Anonymous users2024-02-07

    Who told you that the universe was expanding, and you believed what they said?

  5. Anonymous users2024-02-06

    The two galaxies are facing each other, which is formed by gravity, not all the constellations in Zhensun Hall are facing each other. The expansion rate of the universe is relatively slow, and the galaxy moves relatively hidden.

  6. Anonymous users2024-02-05

    Yes, it does swell; However, there are not only two galaxies in the universe, but the expansion rate of the Chang Pao and Xing Rapid Oak universe is also limited, so the large galaxies next to the two gears will move opposite each other.

  7. Anonymous users2024-02-04

    Now it is constantly expanding, but the speed of the expansion is relatively slow. After all, these planets are mutually rent-exclusive, so there is a state of relative reciprocity.

  8. Anonymous users2024-02-03

    It will lead to the normal life of human beings, it is likely to lead to the disappearance of oxygen and hunger, the breaking of biological chains, the destruction of ecological balance, and the survival of people and animals.

  9. Anonymous users2024-02-02

    The universe may stop growing. The earth will also change a lot, and it may not be possible to have night and day that will affect the normal life of human beings.

  10. Anonymous users2024-02-01

    Maybe our whole world will not exist, if the universe continues to stop expanding, it is possible that one day the liquid will be **, and all the stars can stop moving without excitation.

  11. Anonymous users2024-01-31

    The entire gods and creatures on the earth may face extinction, and there will be many things happening in the universe, and there will be many disasters on the earth, and there will be many disasters.

  12. Anonymous users2024-01-30

    There will be a phenomenon that has never been seen before, a new substance called dark energy will be generated in the universe, which will re-propel these galaxies and stars to move.

  13. Anonymous users2024-01-29

    That's a no-brainer! Hypothetical!

  14. Anonymous users2024-01-28

    The expansion of the universe caused the galaxy to grow larger. ()

    a.That's right. b.Mistake.

    Correct Answer: a

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