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The universe is so big, the existence of life should be very common, but it doesn't have to be like earthlings. For example, the body may not be carbon, not necessarily a physical entity, or even a three-dimensional form. The human imagination is too limited.
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Basically, the probability is very small, because the environment of each planet is different, and only a few can give birth to life, and the planet with the same environment as the earth, it can be said that there is none, and even if there is, it is impossible to give birth to the same life as the life on the earth now, and other life will be born.
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I should say that if there were no human beings, would there be better human beings? It's almost the same, yes, yes, it's just not good.
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It takes life to give birth to human beings, and it needs certain conditions for gestation, but the universe after destruction does not, so I'm afraid it won't be able to give birth to human beings.
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The universe is so big, even if the earth does not exist, there will still be life, but it is not limited to species like humans. The structure of the human body is too complex, and it is a miracle that it can appear on Earth, but there is still a chance.
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Humans can't take what other species can.
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Earth destroys the universe? No way.
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Yes, after all, the universe is so big.
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As long as the conditions are right.
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Whether there is life on planets other than Earth in the universe is yes, but it has not yet been discovered. Theoretically, the universe is infinite. The Earth is just a planet in the solar system, and the solar system is just a tiny part of the Milky Way.
There are about 150 billion stars in the entire Milky Way, and there are quite a few planetary systems like the solar system, among which planets similar to the Earth must exist. It can be guessed that the Earth is by no means the only celestial body with life. However, humanity has yet to find another planet with life.
Related information: The basis for the birth of life is organic matter, and organic matter must be composed of at least oxygen, nitrogen, hydrogen, carbon and other elements. Then, there are certainly not a few planets in the universe that have these elements, as long as there are suitable conditions, these elements can be combined into organic matter, and then these organic matter is constantly evolving, and finally life is born.
Take the evolution of life on the earth as an example: the oxygen, nitrogen, hydrogen, carbon and other elements on the earth form proteins under the action of the sun's ultraviolet rays and thunderstorms; It is also a coincidence that the earth is at the right distance from the sun, so there is life. Life then evolves further due to the constraints of the environment.
Then after n billion years of evolution, humans were born. There are trillions of planets in the universe, so there must be a few in the universe to find a place with similar geographical conditions to the earth. Therefore, we cannot say that there are no life forms other than the earth.
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So far, the only planet discovered by mankind is that there is life on Earth.
However, recently the American Perseverance has discovered organic molecules on Mars, which is the basis for the existence of life, and the universe is so vast that it is not excluded that there is life in distant places that we cannot explore.
Maybe one day we'll dig up a Martian on Mars, and that's not impossible.
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According to expert observations, there is a star galaxy 5 billion light-years away from Earth, very similar to the Sun, in which there may be signs of life, and even higher intelligent life may appear.
Is there or how many celestial bodies like Earth are there in the universe. The organic molecules on Earth do not fly from outside the sky, but they are possessed by themselves, and substances such as water and oxygen, which are necessary for the existence of life, are also abundant in the embryo of the Earth. What is important, then, is the external conditions that cause the evolution of these organic matter, that is, the light and heat conditions from the sun, which are the external conditions that enable the evolution of the earth's organic matter into living matter.
In other words, because the earth has the two conditions of organic matter and solar light and heat, it also has the necessary conditions for the existence of life. In this way, we just need to explore whether there are planets and star systems in the universe like the Earth-Sun. According to research, there are about 1% of stars of the same type as the Sun in the Milky Way, and at least 10% of them have planets, that is, 100 million stars like the Sun have planets.
So among these 100 million planets, are there any planets that are completely consistent with the internal and external conditions of the Earth? In fact, there are countless galaxies like the Milky Way in the entire universe. According to the theory of probability, we can think that there must be celestial bodies in the universe that are the same or similar to the earth in addition to the earth, that is, there must be living planets like the earth in the universe, but we have not discovered each other.
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The vastness of the universe is certain.
It's not just life on Earth. In the solar system, only the planet Earth has life. In the Milky Way, there are four stars in a similar position to the solar system, all of which may have life.
There are at least one billion galaxy clusters similar to the Milky Way, so there may be four billion objects that have life. It's just that these celestial bodies are very far away from the Earth, and humans can't detect them for the time being.
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What can be determined now is that there can be human beings on the earth.
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Do aliens exist?
Edgar Mitchell, a 77-year-old former astronaut, landed on the moon in 1971 aboard the Apollo 14 spacecraft, becoming the sixth man in the world to land on the moon. Shockingly, Mitchell revealed the first amazing inside story in an interview a few days ago - when he returned to the "Apollo 14" capsule from the moon, he encountered aliens! The Mitchell investigation found that aliens have been in contact with humans many times since the 40s of the last century, but the United States has been hiding these secrets for 60 years.
Landing on the moon and encountering aliens.
Mitchell, 77, is one of America's famous space heroes, with a bachelor's degree in aerospace engineering and a doctorate in aeronautics and astronautics. In 1971, he landed on the moon aboard the Apollo 14 spacecraft and set a record time of 9 hours and 17 minutes with his companions.
A few days ago, Mitchell revealed in an interview with Nick Margherson, the host of the American "Krona" radio program, that when he returned to the "Apollo 14" capsule from the moon, he had encountered aliens. He said that at that time, there was a strange feeling of being stared at by something, as if he felt that he had a kind of psychic contact with intelligent life in the universe. Mitchell said
I did see UFOs and aliens in space. ”
Armstrong also saw UFOs
Mitchell said that since returning to Earth, he has been studying mysterious paranormal phenomena because of the huge impact of the alien encounter in space. After leaving NASA, he founded an "Abstract Science Society" in California that specialized in various paranormal events. According to his investigation, in fact, when the American "Apollo 11" astronauts Armstrong and Aldrin set foot on the moon in 1969, they saw three unidentified flying objects (UFOs) with a diameter of 15 meters to 30 meters!
Mitchell disclosed that astronaut Armstrong reported to NASA Command at the time: "Your Excellency, there are a lot of big things out there!" God, they're really big!
They're sitting on the other side of the big crater, and they're on the moon watching us arrive! No one knew what Armstrong was talking about, as NASA had quickly switched to a secure communication channel to prevent what Armstrong said later from being heard by the world. Armstrong's assistant recalled years later
Three UFOs ranging from 15 to 30 meters in diameter had approached only a meter away from their spacecraft. ”
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Just think about the size of the universe, the age of the universe, the age of the earth, the age of humanity, and you will see that it would be inconceivable if there were only us in the universe and no extraterrestrial life.
According to probability, the possibility of life in the universe is very high!!
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The universe is boundless, boundless, endless, beginningless, and endless. It is believed that in addition to the earth, there will be a planet similar to the earth, sooner or later. There is also a possibility of life appearing.
It's just that the interstellar distance is too great. So we can't see with our eyes yet. Human abilities and lives are limited. So far, the human spacecraft has not left the solar system. If you want to see the Milky Way, I don't know how many years it will take.
Just sending a message to Earth on the side of the galaxy will take at least 10,000 years for humans to receive it, but at that time, people don't know how many generations of machines will have passed, and how many generations of machines will have to be replaced.
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Not necessarily.
Although there are a large number of areas in the universe suitable for life, and the elements found on the earth and in the solar system, such as C, H, O, N and other basic elements that make up life, are also found in the universe, and organic chemical reactions can be carried out under many environmental conditions, these are only the theoretical basis for the existence of other life outside the earth, and have not yet been proven. So it's uncertain.
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The Earth's core itself is a giant plant-like lifeform; Because most of the oxygen on Earth comes from the Earth's core, and this life organism also needs carbon dioxide produced by all living things! Every mass extinction is caused by the drastic changes of this life form! All living things are interdependent!
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You said that intelligent life is not only the earth, but the current technology can't even fly out of the galaxy, you must know that the galaxy is just a sand in the beach. A lot of things in the universe are theoretically theorized by scientists, and it is impossible to really reach them. So the earth is not the center of the universe, it's just that there is no way to find it.
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As far as is known to be the case.
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Now that technology wants to explore the true difficulty of the universe, Voyager 1 has just flown out of the solar system, and my brother has just flown out of the solar system! I haven't flown out of the banking system yet! You must know that the banking system is just a grain of sand in the universe, and the speed of the fourth universe, which is currently the fastest for mankind, is also too slow...
Rest assured, as long as there is organic life like the earth in the universe, there will definitely be the same or higher life forms in other unknown galaxies, but you and I can't see it, hahahahaha.
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This is not to say that there are no other planets of life in the universe, but that the alien civilization we have been looking for may not have appeared yet, or even have time, and the evolution of life on this planet has come to an end. Researchers say that Earth is lucky to have life, and the existence of intelligent life on Earth means that the planet has won the jackpot in the universe. Because the Earth has not always been habitable for the past billions of years, life on Earth has created many miracles.
The multiplicity of life on Earth"Doom, the researchers said that from the first life on Earth to today, the brightness of the sun has increased by 30%, which means that the earth receives more and more intense solar radiation, and through computer modeling analysis, the researchers found that under normal circumstances, the temperature of the earth is much higher than they are now, and even the sea water boils. But that's not the case. On the contrary, until 10,000 years ago, the Earth experienced several ice ages, and at the same time, the Earth's temperature miraculously recovered, without extinguishing life.
Its internal mechanisms, which mean that the Earth may be far more complex than we think, have suggested that this may have a stability with the Earth"Thermostat"Related, that is, the Earth can control the balance of temperature, not let itself be too cold, not too hot, and even if something goes wrong at a certain stage, it recovers. In addition, another view is related to the earth's"Lucky"After all, there is more than one habitable planet in the solar system, and many studies have shown that Mars and Venus were even more habitable than today's Earth in ancient times, but they are evolutionary losers, and to put it bluntly, life on Earth is not so good. There are only one in a million humans, how low are the odds of being human?
Planets, like stars, are among the most common inhabitants of the universe, and there may be more of them than stars. No extraterrestrial life has yet been discovered, but researchers believe there are at least 2 billion habitable worlds in the Milky Way.
This means that life should be ubiquitous in the Milky Way, and if intelligent life can indeed evolve on habitable planets, then the constellation Centauri, which is only light-years away, could be the closest alien home in the universe. But this is not the case, because as we mentioned in this article, the evolution of life is full of luck and coincidence and randomness, which means that not every habitable planet has a chance, this is the case with Mars and Venus, but they also represent the camp of most planets in the universe, in simple terms, the 2 billion habitable planets in the galaxy in addition to Earth, which may be the same as Mars and Venus.
Scientists have simulated the evolution of life on habitable planets millions of times, and the final numbers suggest that the chances of primitive cells becoming intelligent are one in a million. The answer is obvious. Why can't we find aliens?
Because aliens have not yet evolved, the habitable planets we have found are at best relatively complex lower life, similar to"Homo sapiens"of early sapient beings had no chance of being born.
The ocean covers 71 of the Earth's surface, and if all the water in the ocean were evenly spread on the Earth's surface, a 2,700-meter-thick hydrosphere would form on the Earth's surface. So some people say that the name of the earth is wrong, and it should be called "water ball". From the origin of life on earth to the formation of human society, from a primitive society with low productivity to a modern society with advanced science and technology, man and water have formed an indissoluble bond. >>>More