Scientifically speaking, are there aliens in the universe?

Although scientists believe that even if there are aliens, it is impossible for aliens to fly to the earth in view of the huge distance between planets, they do not deny the possibility of intelligent life in outer space.

Do extraterrestrial creatures exist?

UFOs exist in mysterious ways, and tens of millions of people on earth claim to have seen UFOs. Are these "witnesses" fantasists or liars? Or is there something between lies and truth? Is the answer on a planet in space, or does it come from mankind's worship of mystery?

The first wave of UFO research in the world began with the most famous "Arnold incident" in the history of UFO research. UFO is the English abbreviation, meaning "unidentified flying object", also known as "flying saucer" or "UFO". It refers to a moving flying object or astronomical scene that can be detected by naked eyes or radar, but humans are currently unable to explained phenomenon. People who are interested in UFOs not only speculate that they come from a civilization that is more advanced than the earth, but also explain this phenomenon with psychological inferences about the problems that modern people may face. Descriptions of UFOs include: moving or hovering quickly; moving silently, erratically or roaring abnormally; shapes such as saucers, cigars, spheres, rings or ovals. According to current statistics, there are more than 100 different shapes.

Records of UFOs have been around the world since ancient times. However, on June 24, 1947, the American press used the first word "flying saucer" to report the incident of Arnold's sighting of a flying saucer. It was only then that the extraterrestrial visitors who were curious about the world were exposed to people's eyes and caused a sensation all over the world.

However, in the exploration of the universe, the exploration of aliens can arouse people's interest the most. Although scientists believe that even if there are aliens, it is impossible to fly to the earth due to the huge distance between planets, they do not deny the existence of intelligence in outer space?

Nebula NGC 6543, nicknamed "Cat's Eye" Nebula

Recently, two scientists discovered that there are two planets outside the solar system that may have conditions for the existence of life, which has triggered a wave of "extraterrestrial civilization" fever. Some scientists believe that aliens must exist, but it is not easy to find a planet with life like Earth. The presence of planets does not necessarily mean that there is life; the presence of life does not necessarily mean that there is advanced life. It requires that the position of the planet to the parent star must be just right. According to such conditions, it is only possible to have about 1 million planets in the Milky Way. Among these 1 million, there must also be a series of conditions for the formation of life, including water, oxygen and various chemical elements. And if the aliens on those planets have highly developed civilizations, and their history of sending radio signals to high altitudes is much earlier than that of the earth, it has been 1 million years (our earth is only 100 years old), then after calculation, there are There are only 250 planets that can do this. If they were evenly distributed in the Milky Way, the closest one to us would be 4,600 light-years away. In the universe, there are 1 billion extragalactic galaxies like the Milky Way.

In order to contact possible extraterrestrial beings, humans have so far carried out 50 plans to search for radio wave signals in outer space. Although they have all ended in failure, humans are still looking for another way to find extraterrestrial civilizations. This method, that is, the effort to use man-made spacecraft to directly detect outer space, is still in progress. In 1966, the then United Nations Secretary-General U Thant asked UFO researcher von Kievitsky to study how to put UFOs on the United Nations agenda. In 1978, the First Committee of the 33rd session of the United Nations General Assembly adopted a negotiation draft proposed by the Grenada government, recommending that member states coordinate the scientific research and adjustment of extraterrestrial life, including UFOs. In 1979, the 43rd session of the United Nations General Assembly passed a proposal to study UFOs as a global issue. In the outline of the 47th session, it was pointed out: "The study of UFOs that involves the entire human race should be a way for humans to solve the social and economic problems of the world. , politics and other issues.” The first international conference to discuss UFOs was held in Mexico in 1977. In 1983, the second UFO Congress was held in Brazil.

Also true and false

In 1972 and 1973, the United States launched the "Pioneer" 10 and 11, and the "Voyager" 1 and 2 spacecraft to explore distant places. of outer space. Pioneer Nos. 10 and 11 each carry a greeting letter "written" on a gold-plated plate. Voyager 1 and Voyager 2 each carried a gold-plated record with a diameter of 30.5cm called "Voice of the Earth" and a playback device. It recorded greetings in 60 languages ??and 113 pictures depicting the earth's customs. Coded pictures of human feelings (one of which has the Great Wall), 35 kinds of earth's natural sounds, and 27 kinds of world famous songs. The "Voice of the Earth" carried by the "Voyager" spacecraft also contains a message to astronauts signed by US President Carter: "This is a gift from a small, distant planet. It is our voice, science, and image." , music, thoughts and feelings. We are trying to survive our time so that you can understand the conditions in which we live. We hope to one day solve the problems we face in order to join the family of civilizations in the galaxy.

This "Voice of the Earth" is to place our hopes, our resolve and our best wishes for distant worlds in this vast and awe-inspiring universe. ”

The flight speed of Voyager 1 and 2 is about 500 million kilometers per year. If all goes well, they will still send data about the universe back to the earth before 2015. After that, they will All instruments were shut down due to power outage, but the last hope came from the expectation of the unknown if Voyager 1 and 2 encountered intelligent aliens. , maybe they can understand: there are 9 large planets surrounding a distant star, and the third one from the center has many lonely intelligent beings on it. They sincerely hope to find some "cosmic relatives" in the vast space. ".

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Assumptions about the existence of aliens

Reports about aliens often appear in newspapers, Many people claim to have seen flying saucers and even aliens, and they have also taken various photos of flying saucers. Are these true or false? Do aliens really exist?

According to people who claim to have seen aliens, most of the aliens they saw were short humanoids with large round heads, narrow mouths like slits, and wearing tight clothes. But some people also claimed that they were. The aliens seen are tall giants, robot-like monsters, hairy monsters and even beautiful naked women. Some people believe that these aliens come from more than one planet. Others believe that these aliens are from more than one planet. It is absolutely impossible for so many different species of aliens to visit at the same time. This chaotic description shows that the alien claims are unfounded. Some people think that a considerable part of these are indeed unbelievable, but they are still unfounded. Some are confirmed to be real.

Others are keen to find traces of aliens in ancient times. They believe that the round masks of figures in the Sahara Desert, Easter Island and South America. Various unexplained prehistoric miracles such as megalithic buildings and pyramids are related to aliens. Some scholars have proposed that humans are the descendants of aliens, or that some human races (such as the Mayans) are aliens who have mated with earthlings. Descendants and other views, but these can only be regarded as speculations and hypotheses, most of which still lack sufficient evidence. Carl Sagan, a famous astronomer at Cornell University in the United States, once pointed out that throughout the Milky Way. There are almost 200 billion stars in it, and a considerable number of these stars have planets. It is estimated that there may be as many as one million planets with similar conditions to the earth. Since life can be produced and evolve on the earth, then. It is also possible for intelligent creatures to be produced and evolve on these planets, and some of them must be more advanced than the current human civilization. Therefore, these astronomers believe that there are other planets other than the earth. The emergence of intelligent life is entirely possible.

But Sagan scorned the news that people around the world often encounter aliens. He believes that these are all adding some technologies mastered by humans to the so-called aliens. Most of the alien images described in Star People are deformations of humans. On other planets, the evolutionary process of life is very different. The evolutionary form of extraterrestrial intelligent life is likely to be completely different from that of humans, and the science and technology it masters will also be completely different from humans. Moreover, these planets that may produce intelligent life are thousands or tens of thousands of light years away from the earth. Therefore, it is completely unrealistic to think that aliens visit every year or even every day.

Sagan’s views generally represent the opinions of serious scientists. This means that the existence of extraterrestrial intelligent life is theoretically possible. However, most of the news about the discovery of aliens is not credible. However, there are still some events that are considered reliable but cannot be explained by the current scientific community, and even some incomprehensible prehistoric miracles. Are they related to extraterrestrial intelligent life? It all remains a mystery.

Scientists have put forward various possible assumptions about the current existence of aliens. These ideas are bold and seem bizarre now, but who can blame human imagination? Maybe these Fantasy will one day become something substantial.

Underground Civilization

I remember reading a comic story that said that the earth is a paradise for human evolution, but inside the earth there is another world ruled by evolved insects. In the civilized world, underground insects finally started a war with humans for the right to survive on the ground. It is reported that after the American artificial satellite "Charlie 7" went to the Arctic Circle to take pictures, it discovered a hole in the Arctic zone on the film. Is this an entrance to the interior of the earth? In addition, geophysicists generally believe that the weight of the earth is millions of times 6 megatons. If the interior of the earth were a solid body, the weight would be more than that, thus giving rise to the "hollow earth theory". Some oil exploration team members have discovered large tunnels and huge underground people underground. We can imagine that people on earth are divided into surface people and people inside. The underground people in the underground kingdom must have mastered science and technology that are superior to the people on the surface. In this way, they, the co-stars of the people on the surface, travel in flying saucers that the people on the surface cannot yet make. Space becomes a matter of course.

The theory of mixed living

This view holds that aliens live and work among us! In some photos taken by researchers using an amazing new radiation camera, some people's heads were surrounded by a greenish halo, possibly caused by radiation emitted by their brains. However, when attempts were made to query the haloed individuals, it was discovered that these individuals had completely disappeared, with no trace of even a trace of their ever existence being found. Aliens are hiding among us and we have no idea what they are going to do, but there is no evidence that aliens will harm us.

The theory of human ancestors

There is a view that the ancestors of human beings are aliens. About tens of thousands of years ago, a group of aliens with high intelligence and technological knowledge came to the earth. They found that the earth's environment was very suitable for their habitation. However, because they did not bring sufficient facilities to cope with the earth's geocentric attraction , so he changed his original intention and decided to create a new human race - produced by the combination of aliens and earth apes. They used female apes as targets and tried to impregnate them, which resulted in today's human beings.

Parallel world theory

The universe we see (i.e. the total galaxy) cannot be formed within the scope of the four-dimensional universe. In other words, the world around us is not just growing, It is formed in the several dimensions of width, height and time. The universe may be composed of two worlds adjacent to each other. Although the connection between them is small, they are almost transparent to each other. These two material worlds are usually "shape"-like worlds that have little influence on each other. When these two stacked worlds were formed, the interaction force that "combined" them into one was extremely large, and various materials were highly mixed together to form a unified world. Later, the universe expanded. At this time, the density of matter decreased and gravity weakened, thus forming two actually independent worlds. In other words, it is entirely possible that there is an invisible parallel world adjacent to ours in the same time and space. To be precise, it may be similar to our world, or it may be completely different from our world. The laws of physics and chemistry may be the same, but the actual conditions are different. These two worlds "dominated one side" as early as 20-15 billion years ago. Therefore, it is possible that flying saucers come from that other world. It may be that they accidentally broke in under certain special conditions. It is more likely that they have already mastered the knowledge of traveling in the two worlds and often travel between the two worlds. Their technological level far exceeds that of us humans. above.

The theory of four-dimensional space

Some people believe that UFOs come from the fourth dimension. That kind of ghostly aircraft disappears in an instant, and the satellite electronic tracking system network cannot keep track of it when it is turned on. It can be believed that the crew of the UFO is playing with time and space. A technical means that can form certain local curvatures of space. This local curved space will then expand in the space in contact with it. After completing this step, people from another space can come to our space. . As stated in various sighting reports, tangible creatures will suddenly appear from the ground near a UFO, rather than visibly running out of a door. For these situations, the above statement can be regarded as an explanation.