There are at least 2 trillion galaxies in the universe, will there really be an extraterrestrial civ

Updated on science 2024-03-19
21 answers
  1. Anonymous users2024-02-07

    In our huge universe, there are a very large number of planetary celestial bodies, and there are also hundreds of billions of galaxies, the universe is so huge that we can't make up for the great existence of it with our imagination, because of this, human beings want to explore this huge universe, want to complete their own great creations. So in the huge universe, scientists have discovered at least 2,000 billion galaxies, and will there really be extraterrestrial civilizations among these 20,000 galaxies? The answer is yes, and the reasons for this mainly involve the following.

    1. The universe is too big. First of all, the first point is that the universe is too large for our human beings to fill its area with our cognition, because we human beings are considered small beings in the entire universe, and our current human exploration of the entire solar system is still in the stage of hard exploration. For the universe, our human beings are still relatively lacking in the current level of cognition, so they cannot have a good understanding of the entire universe.

    But among the extraterrestrial civilizations, we humans have always had a certain existence, because among these 2,000 billion galaxies, there will definitely be some galaxies that will have the same properties as the earth, water, oxygen, carbon dioxide, etc., and it is also possible that life will be born. <>

    Second, there are 2,000 billion galaxies that are possible. Secondly, and the other point is that if there are 2 trillion galaxies, there are 2,000 billion possibilities. After all, among these 2 trillion galaxies, there may be more planets, and these planets, are there no planets that will have single life?

    This is certainly impossible, and there will be some advanced life forms (composed of silicon) that are stronger than our human flesh and blood bodies. <>

    3. The discovery of these UFOs by mankind also indirectly recognized the existence of extraterrestrial civilizations. The last point is that among these UFOs announced by the United States**, it is also indirectly believed that there is an extraterrestrial civilization.

  2. Anonymous users2024-02-06

    No. Because the birth of life is a coincidence, the probability is very low, so there will be no extraterrestrial civilization.

  3. Anonymous users2024-02-05

    According to the current development, although no aliens have been found, they should exist.

  4. Anonymous users2024-02-04

    Although the earth is in the universe, it can only be regarded as a grain of sand, and it may not even be possible to find the master with a microscope, but she at least has human beings, and in the eyes of human beings, the earth is still full, which can hold more than 7 billion people, as well as various buildings and equipment, etc., and has determined its position in the universe, and immeasurable energy and significance.

    Because it is with human beings that we can discover the universe, discover the Milky Way, and find the solar system in the Milky Way, there is a beautiful earth in the solar system, and the earth human beings are scientific research and explore the mysteries of the universe.

    The universe is vast and boundless, which is the current human cognition, but what is the purpose of the expansion of the universe is so large, it is not just for the earth of the solar system, but only for human beings.

    Therefore, no one will believe that there are only human beings living in the universe, but what can they do if they don't believe it, the reality is in front of us, the key is that human beings have not yet discovered aliens, and even the shadow of any alien creatures cannot be seen, which is strange, according to the current high technology of human beings, how can it not be discovered, there must be a problem here, maybe human beings cannot create a flying machine with the speed of light, or there is some kind of dark ability and dark law in the universe that is constrained, and human beings are not allowed to discover others, or aliens are not allowed to discover human beings.

    If this is the case, then even if human beings have reached an advanced civilization, with light-speed vehicles, they may not be able to find aliens and alien creatures, in other words, even if there are aliens, and human beings think that it is more advanced than human civilization, then why don't they come to humans, and there are no vehicles that have reached the speed of light?

    This confirms that the universe is really not simple, and it is not an ordinary multidimensional space, there are dimensions, and human beings can't see anything with the naked eye for the time being, anyway, they don't let humans and aliens meet each other, maybe after they really meet, all the living planets in the universe, the first star war will begin.

  5. Anonymous users2024-02-03

    Because the living environment of the earth is very special, it requires a lot of luck. Although there are many planets in the universe that are suitable for survival, there is a lack of many such luck. So far, there is no real evidence to confirm the existence of aliens, so it is reasonable not to believe it.

  6. Anonymous users2024-02-02

    Because humans have never found aliens, and no traces of aliens have been found, they do not believe it.

  7. Anonymous users2024-02-01

    Seeing is believing, because basically everyone has never seen aliens, adhering to the concept that hearing is false and seeing is believing, some people believe and some don't.

  8. Anonymous users2024-01-31

    The Hubble Space Telescope in the United States used 113 days of accumulation** to synthesize the clearest deep-space image to date, the "Hubble Extreme Deep Field". But this 10,000-bay galaxy is only 1/12.7 million of the entire celestial area, so the astronomical community estimatesIn the case of isotropy, there are at least 7 trillion galaxies in the observable universe with a radius of 46.5 billion light-years, and this number will multiply several times if the unobserved universe is taken into account.

    In fact, the Earth may not be the only planet with life in the solar system, according to scientists, Jupiter's moon Europa also has the conditions for the birth of life. According to the origin of life on Earth "submarine hydrothermal vent hypothesis", discovered on the planet EuropaThere is also the liquid ocean, which means that the seawater can be insulated from ultraviolet rays, ensuring that life is not harmed by ultraviolet rays and other cosmic rays.

    In addition, the detector found that there is a hot vent at the bottom of the ocean in Europa, which will continuously provide a difference in particle concentrationEarly life used particle concentration differences to provide energy. However, these forms of life are relatively low-level and cannot evolve into civilizationFor example, they can't send satellites and don't know how to receive signals from extraterrestrials. The earth is different, the earth is the only planet in the solar system that has given birth to civilization, and the conditions for a planet to give birth to civilization are much harsher than the conditions for giving birth to life.

    Civilizations in the universe are still relatively rare compared to the vast universe, so the distance between civilizations may be very far away, ranging from hundreds of light-years to millions of light-years. At such a long distance, if you want to reach it, a civilization must at least master the space technology of flying at the speed of light, and if it is more distant, it needs to have the ability to travel faster than the speed of light. And it is a very long time for a civilization to develop to the point where it can conduct interstellar voyages.

    It has been millions of years since the birth of human beings, and we are only just leaving the earth, and we can't even go out of the solar system. At a distance of one light year, at the speed of human spacecraft today, it would take at least 10,000 years to travel. Abraham Loeb believed that all intelligent life in the universe would "self-destruct" in the process of developmentThis may be a special self-preservation mechanism of the universe, or it may be a hurdle that intelligent life will inevitably encounter, no matter what its essence is, it is always the fundamental reason for the short-term existence of extraterrestrial civilizations.

    It is very difficult for an intelligent civilization to survive in the universe for a long time. Whether it is the cause of civilization itself or various disasters from the universeThere is a possibility that this civilization will come to an end at any time. It is possible that in the vast universe, many powerful civilizations were bornThey have been developing for hundreds of millions of years and have been very powerful, but eventually they become extinct for various reasons.

  9. Anonymous users2024-01-30

    Because of the distance between different planets, humans cannot travel freely between galaxies, so it is difficult to find other civilizations.

  10. Anonymous users2024-01-29

    It is because the level of science and technology is not enough, and the level of science and technology in aerospace is still very weak, so there is no way to find it well.

  11. Anonymous users2024-01-28

    I think it may be because the alien civilization is still far away, and our current level of technology is not yet detectable.

  12. Anonymous users2024-01-27

    Didn't the news say a few days ago that there was a wall......The earth is encircled in it, you can't fly over it, so you will find aliens.

  13. Anonymous users2024-01-26

    It was I who created the design civilization dimension, how to find it in my body???

  14. Anonymous users2024-01-25

    <> there are currently two trillion galaxies in the known universe, as well as countless planets, but why have no extraterrestrial civilizations been discovered? First of all, scientists have discovered far from a trillion terrestrial planets, and as of August 2017, scientists claim to have discovered about 3,500 terrestrial planets, of which only 20 are the most similar to Earth! So, maybe there are trillions of terrestrial planets in the universe, but it takes a long time to explore and discover to confirm!

    Among the thousands of terrestrial planets that have been discovered, not to mention extraterrestrial civilizations, scientists have not discovered even the most basic primitive life! What does this mean? Although we have been exploring outer space for decades, expanding to the outer solar system, the scope of exploration is too small for the vastness of the universe!

    Perhaps most importantly, life, especially advanced intelligent life like humans, is rare.

    From the evolutionary history of life on Earth, it can be seen that it takes too many near-perfect conditions to be superimposed before life can occur, and there are too many accidental factors mixed with it! Life exists in other parts of the universe in ways that are beyond our imagination and completely different from life forms on Earth, which also makes it more difficult for us to find extraterrestrial life. But even if this is the case, scientists will still use life on Earth as a benchmark to find extraterrestrial life, otherwise they will abandon the basics!

    There is a suffocating possibility, that is, the earth is the only planet in the universe that carries an advanced civilization, and this advanced civilization is us humans, which means that we humans are lonely. Until we discover extraterrestrial civilizations, this possibility will always exist! As for the question of why we can't find extraterrestrial civilizations, if it's a matter of distance in space, or the difference in development between civilizations, etc., and it is also possible that we can't find extraterrestrial civilizations.

    But is there any other reason? Because we really don't want to believe that there are trillions of terrestrial planets in the huge universe, is it true that there are no other civilizations? Is there some kind of hierarchical or dimensional evolution in nature, each with its own separate evolution?

    If there is such a stratification, it is really difficult for us to find such aliens of the same type as us. But will there be such a so-called hierarchical and dimensional alien evolution? Since this is a different dimension of aliens, we can't see it.

    And it can't be said that there is. And aliens of different dimensional natures, even if they really appear in our time and space, we may not be able to see them, or we don't know what they are.

  15. Anonymous users2024-01-24

    Because we don't know much about the universe yet, and we haven't reached the end of the universe, we haven't discovered extraterrestrial civilizations.

  16. Anonymous users2024-01-23

    This is because extraterrestrial civilizations are not certain whether they exist or not, and human cognition is limited, so no extraterrestrial civilizations have been discovered.

  17. Anonymous users2024-01-22

    These planets are not suitable for the survival of living beings, and there is no way for them to spawn civilizations, which is why this situation occurs.

  18. Anonymous users2024-01-21

    1. There must be alien species, and there is a human species on such a small planet as the earth. Then beyond the distant galaxies, we cannot deny the existence of other species.

    2. It may be due to some factors that human beings cannot see, hear, or touch their existence. The two species forms or civilizations are not the same.

    3. As far as mankind knows, there is only a very small part of the universe. And there are very few planets that humans have explored, only near the solar system. The solar system is an insignificant speck of dust in the Milky Way.

  19. Anonymous users2024-01-20

    Personally, I think the possibility of aliens is very high. Because the Milky Way is a small existence, there must be other life in the vast universe.

  20. Anonymous users2024-01-19

    Not too. Because although there are trillions of galaxies and planets in the universe, there are very few planets with a similar environment to the earth, so the possibility of aliens is not very high.

  21. Anonymous users2024-01-18

    Some may believe that there will be no aliens! But personally, I believe there are aliens.

    Clause. 1. Whether it is earthlings or aliens, they all live in this cosmic logical space-time; Clause.

    Second, living things need a special environment to be produced, and the earth meets the requirements, so can't there be a second earth in this universe with countless suns? It's absolutely impossible; Clause.

    3. Let's not look at aliens as particularly magical, because as long as they are living beings, as long as they are in this cosmic space, the logic of biological evolution is the same everywhere, it's just a matter of distance! What's more, who would dare to say that the ancestors of the earth's creatures did not come from outer space? It may be that humans themselves are aliens.

    According to the current scientific explanation, the first seeds of life of living beings came from the universe, and the earth only provided an environment for these seeds to grow and reproduce. According to this explanation, aliens and earthlings may still have the same ancestor billions of years ago! It's just that these seeds of life go there with meteorites or icy asteroids, and the Earth in the solar system one goes to the other.

    According to Hawking's theory of the universe, the universe has only been about 15 billion since its birth; In the four billion years of these 15 billion years, the young earth alone has experienced many mass extinctions, and many species have disappeared due to environmental changes before they have time to evolve perfectly. Therefore, they are all in a young time and space, and it is impossible for aliens and earthlings to be connected with the current level of science and technology! Perhaps only if both sides have developed faster-than-light carriers, and the most important thing is to get rid of the shackles of the physical body, otherwise it will not be possible at all; Because the physical body is too demanding on the environment.

    It is possible that before they could evolve to perfection, they became extinct due to huge natural changes!

    Therefore, nature does not give special care to physical humans! Whether it is earthlings or aliens, they all have one thing in common: they must evolve to produce civilizations; At the same time, we must also race against time, and before the great catastrophe comes, we must find a way to accompany the jujube beam to get rid of the physical constraints of the environment, so that we can stand in the universe forever, and only then can we have time to realize the meeting between earthlings and aliens.

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