Do aliens exist?

Although scientists believe that even if there are aliens, it is impossible to fly to the earth, but they have not denied the possibility of intelligent life in outer space.

Does extraterrestrial life exist?

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

The first upsurge of UFO research in the world began with the most famous "Arnold incident" in the history of UFO research. UFO is an English abbreviation, which means "UFO", also known as "UFO" or "UFO". Refers to a moving flying object or astronomical scene, which can be observed with the naked eye or monitored by radar, but human beings can't explain it at present. People who are interested in UFO not only speculate that it comes from a more advanced civilization than the earth, but also use psychological inference to explain this phenomenon from the problems that modern people may face. Descriptions of UFOs include: fast moving or hovering; Silent, erratic or growling when moving; Shapes such as plate, cigar, sphere, ring or ellipse, according to the current statistics, have reached 100 different shapes.

Records of UFOs around the world have existed since ancient times. However, on June 24th, 1947, 1947, the American press reported Arnold's UFO sighting in a large space, which made people all over the world curiously whisper to each other and caused a sensation all over the world.

However, in the exploration of the universe, the exploration of aliens can arouse people's interest most. Although scientists believe that even if there are aliens, it is impossible to fly to the earth, but they have not denied the possibility of intelligent life in outer space.

Nebula NGC6543, nicknamed "Cat's Eye" Nebula

Recently, two scientists discovered that two planets outside the solar system may have the conditions for life, which even aroused a fever of "extraterrestrial civilization". Some scientists think that aliens certainly exist, but it is not easy to find a planet with life like Earth. If there are planets, there is not necessarily life; Life does not necessarily mean more advanced life, it requires that the position of the planet to the parent star must be just right. According to such conditions, there are only about 6.5438+0 million planets in the Milky Way. In this 654.38+million, there must 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 a highly developed civilization, and their history of sending radio signals to the sky is much earlier than that of the earth, which has been 1 10,000 years (our earth is only 100 years old), then it is possible to count down only 250 planets. If they are evenly distributed in the Milky Way, the latest one is 4,600 light years. In the universe, there are 654.38 billion extragalactic galaxies like the Silver System.

In order to communicate with possible alien creatures, so far, human beings have carried out 50 plans to search for radio signals in outer space, all of which ended in failure, but another way for human beings to find alien civilization, that is, to directly detect outer space by using artificial spacecraft, is still in progress. During the period of 1966, U Dan, then Secretary-General of the United Nations, asked Von Keviczky, a UFO researcher, to study how to put UFOs on the agenda of the United Nations. 1978, the First Committee of the 33rd UN General Assembly adopted the deliberation draft put forward by the Grenada government, suggesting that all member countries coordinate the scientific research and adjustment of extraterrestrial life, including UFOs. 1979, the 43rd session of the United Nations General Assembly adopted a proposal to study UFOs as a worldwide topic, and pointed out in the outline of the 47th session: "The study of UFOs involving all mankind should be a part of human efforts to solve world social, economic and political problems." 1977 the first UFO international conference was held in Mexico. 1983 the second UFO conference was held in Brazil.

Right or wrong

1972 and 1973, the United States launched Pioneer 10 and 1, Voyager1and 2 to explore distant outer space. "Pioneer" 10 and 1 1 each carry a message of congratulations written on a gold-plated plate. Voyager 1 No.2 and Voyager1No.2 each carry a gold-plated record called "Voice of the Earth", which is 30.5cm long and equipped with a playback device. It records greetings in 60 languages, 1 13 coded pictures depicting the customs of the earth (including the Great Wall of Wan Li), 35 kinds of natural sounds of the earth and 27 kinds of world famous songs. Voyager spacecraft carries the voice of the earth and the message signed by US President Carter to astronauts: "This is a gift from a distant small planet. It is the epitome of our voice, science, images, music, thoughts and feelings. We are trying to keep our time alive, so that you can understand our life. We look forward to solving the problems we face one day in order to join the civilized family of the Milky Way. This "voice of the earth" is to pin our hopes, our determination and our good wishes for the distant world on this vast and awesome universe. "

Voyager 1 and Voyager 2 fly at a speed of about 500 million kilometers per year. If all goes well, they will still send the information of the universe back to earth before 20 15. After that, they will turn off all the instruments because of the exhaustion of electricity, but they will still fly silently to the depths of space outside the solar system. The last hope comes from the expectation of the unknown. If travelers 1 2 meet intelligent aliens, maybe they can understand that there are many lonely intelligent beings around a distant star, the third from the center, and they sincerely hope to find some "cosmic relatives" in the vast space.

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The hypothesis about the existence of aliens

Reports about aliens often appear in newspapers. Many people claim to have seen UFOs and even aliens, and have taken various photos about UFOs. Is all this true or not? Do aliens really exist?

According to people who claimed to have seen aliens, most of the aliens they saw were humanoid creatures, with short stature, big heads, narrow mouths like cracks and tight clothes. But some people claim that the aliens they see are tall giants, robot-like monsters, hairy monsters and even beautiful naked women. For this phenomenon, some people think that these aliens come from more than one planet. Others think it is impossible for so many different kinds of aliens to visit the earth at the same time. This chaotic description just shows that the alien's statement is unfounded. Some people think that a considerable part of these are not credible, but some of them can still be proved to be true.

Others are keen to find traces left by aliens in ancient times. They believe that all kinds of unexplained prehistoric miracles, such as the circular masks of characters in the murals in the Sahara desert, the huge stone buildings in Easter Island and South America, and the pyramids, are all related to aliens. Some scholars have suggested that human beings are descendants of aliens, or that some ethnic groups in human beings (such as Maya) are descendants of aliens mating with earthlings. But these can only be used as guesses and assumptions, and most of them still lack sufficient evidence.

Carl sagan, a famous astronomer at Cornell University, once pointed out that there are almost 200 billion stars in the whole galaxy, and quite a few of them have planets. Among these planets, it is estimated that there may be as many as one million similar to the earth's environment. Since life can be produced and evolved on the earth, it is also possible to produce and evolve and show intelligent creatures on these planets. Some of them are certainly more advanced than the present human civilization. Therefore, these astronomers believe that it is entirely possible for intelligent life to appear on other planets besides the earth.

But Sagan sneered at the news that people all over the world often meet aliens. He believes that these are all adding some technologies to the so-called aliens, and most of the alien images described are human deformation. On other planets, the evolution process of life is very different. The evolution form of extraterrestrial intelligent life is likely to be completely different from that of human beings, and the science and technology it has mastered will also be completely different from that of human beings. Moreover, these planets that may produce intelligent life are thousands or tens of thousands of light-years away from the earth. Therefore, it is totally unrealistic to think that aliens visit every year or even every day.

Sagan's views can roughly represent the opinions of serious scientists. In other words, the existence of extraterrestrial intelligent life is completely possible in theory. But all kinds of news about the discovery of aliens are mostly unconvincing. But there are still some events that are considered reliable but can't be explained by the scientific community at present, and even some prehistoric miracles that can't be understood. Are they related to extraterrestrial intelligent life? All this remains a mystery.

For the existence of aliens at present, scientists have put forward various possible ideas, which are bold and now seem bizarre, but who can blame human imagination? Maybe these fantasies will become quite big one day.

Underground civilization theory

I remember reading a cartoon story, which said that the earth is a paradise for human evolution, but there is another civilized world ruled by evolutionary insects inside the earth. Finally, underground insects waged war with human beings for the right to live on the ground. It is reported that after the American satellite "Charlie 7" went to the Arctic Circle to shoot, it was found that there was a hole in the Arctic region on the negative. Is this the entrance to the interior of the earth? In addition, geophysicists generally believe that the weight of the earth is several million times that of 6 trillion tons. If the earth's interior is solid, it will weigh more, which leads to the "hole theory" Some oil explorers found large tunnels and huge underground people underground. We can imagine that the earth people are divided into surface people and inner people, and the underground people in the underground kingdom must hold high the technology higher than the surface people. In this way, as companions of surface people, it is natural for them to travel by flying saucers that surface people can't make.

Mixed housing theory

This view holds that aliens live and work among us! In some photos taken by researchers with an amazing new type of radiation camera, it is found that some people have a light green halo around their heads, which may be caused by radiation from their brains. However, when I tried to query people with aura, I found that these people disappeared completely, and there was no sign of their existence. Aliens are hiding among us. We don't know what they are going to do, but there is no evidence that aliens will hurt us.

Human ancestor theory

There is a view that human ancestors were aliens. About tens of thousands of years ago, a group of aliens with high IQ and scientific and technological knowledge came to the earth. They found that the environment of the earth is very suitable for them to live in. However, because they didn't bring enough facilities to cope with the gravity of the earth, they changed their minds and decided to create a new race-a combination of aliens and earth apes. They took the female ape as the object and tried to make it pregnant, thus producing today's human beings.

Parallel world theory

The universe we see (that is, the total galaxy) cannot be formed in the four-dimensional universe, that is to say, the world around us is not only formed in the length, width, height and time dimensions. The universe may consist of two adjacent worlds. Although there is little connection between them, they are almost transparent to each other. These two physical worlds are usually "inseparable" worlds and have little influence on each other. When these two layered worlds are formed, the interaction force to "compound" them into a whole is great, and various substances are highly mixed together, thus forming a unified world. Later, the universe expanded. At this time, the density of matter decreases and gravity weakens, thus forming two worlds that are actually independent of each other. In other words, it is entirely possible to have an invisible parallel world adjacent to us in the same time and space. To be exact, it may be similar to our world or completely different from ours. Maybe the laws of physics and chemistry are the same, but the actual situation is different. These two worlds "dominated each other" as early as 20-/kloc-0.5 billion years ago. Therefore, flying saucers may come from another world. It may be that they accidentally broke in under some special conditions, and it is more likely that they have mastered the knowledge of traveling in two worlds, and they often shuttle between the two worlds, and their scientific and technological level far exceeds our human beings.

Four-dimensional space theory

Some people think that UFOs come from the fourth dimension. The ghostly aircraft disappeared instantly, and the satellite electronic tracking system network could not be seen at all when it was turned on. It can be thought that UFO residents are playing with space-time technology. A technical means can form some local space bends, and this local curved space will expand in the space in contact with it. After completing this step, people from another space can come to our space. As mentioned in various eyewitness reports, concrete and tangible creatures suddenly appeared on the ground near UFOs, instead of running out of a door obviously. For these situations, the above statement can be regarded as an explanation.