Are there any aliens in the world, and if so, on which planet?

Personal opinion: I remember a science fiction master once said: Since there can be no oasis in the desert, there can be no living earth in the universe. Personally, I think there must be aliens. We just have many planets in the universe. It is impossible that only the earth is suitable for life. There must be other life forms, but we have not confirmed them. So far, mankind has not confirmed the existence of extraterrestrial civilization on any planet or galaxy, because it is too far away. Even Mars in the solar system will take us a long time to reach. To tell the truth, even in today's so-called advanced technology, the technology we humans have is still too limited. With our best technology, the fastest spacecraft is only several times the speed of sound, which is far from the speed of light. You know, the distance between celestial bodies in the universe is measured in light years. The definition of light-year implies how small and insignificant we are in the universe, and also indicates that we can only boldly know that there is an extraterrestrial civilization, but we can only do nothing to explore it. We can only wait and see, speculate or accept information and signals from extraterrestrial civilization with astronomical telescopes on the earth. Of course, we have been striving for it. ...

The following is the relevant information collected, I hope it is useful.

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It is reported that many scientists who have been studying abnormal phenomena for a long time do not doubt the existence of UFOs, but UFOs in their eyes are different from mysterious UFOs. In their view, the "unknown" in the so-called "UFO" only means that the witness saw something, but did not immediately recognize what it was. Generally speaking, in a certain period of time, under certain circumstances, ordinary people simply look at it, and may not really distinguish many things that appear in the sky, but pilots, meteorologists or astronomers may recognize what they are at a glance.

In the same way, most people can understand an unusual experience, but psychologists can explain it accordingly. So is the so-called "encounter with aliens" incident. We don't look for evidence from reality to explain what is unknown at the moment, but use our brains to explain it. Man is a model animal, and our brains will eagerly give a specious explanation for what we can't immediately recognize. And we often make self-correction to make our analysis of what we have seen and heard more reasonable. In this way, many times, we misunderstood and misremembered the truth of the incident.

Here are ten of the most famous so-called "encounters with aliens", all of which were proved to be false in the end.

1. Roswell alien ufo crashed.

Event: The most famous UFO crash happened at 1947, on a big farm outside roswell, New Mexico, USA. Mysterious remains and alien bodies have been found. With the intervention of the government, they were secretly taken away and hidden.

Truth: The government did hide the object that crashed outside Roswell, but it was not an alien ufo, but a weather balloon, which was used in a secret spy program called the Mughal Project. Preliminary witnesses said that the wreckage was very similar to the balloon planned by Mughal. And the idea about the alien body is even more nonsense. At present, there are many similar versions of the theory of the crash of a spaceship carrying alien bodies. In fact, the "Roswell UFO crash" is just one of them.

Alien Abduction

Event: Hundreds of people claimed to have been kidnapped by aliens, which was the most frequent in the 1980s. They were raped, used in experiments, implanted with foreign bodies and subjected to other physical torture. Several famous researchers, including John Mack of Harvard University, not only support these views, but also write books to tell the stories of the victims.

Truth: There are several reasons for alien abduction. Most experiences were discovered years later when people received psychotherapy for other problems. Studies have proved that careful psychologists will cause some false memories to patients during the treatment. People who receive treatment mistakenly think that they have been kidnapped or abused, but it is completely false. Other researchers demonstrated a psychotherapy called "sleep paralysis", which may be misunderstood as alien abduction.

3. Exotic implants

Event: Aliens not only kidnap earthlings, but also put many kinds of objects into people's brains and bodies, which is part of alien evil experiments. The victim didn't realize that he was kidnapped until he found something unknown in his body. One of the implants was found, but after scientific testing, it was found that these objects were indestructible and these materials could not be found on earth at all.

Truth: joe nickel, a columnist of Suspected Explorer magazine, said: "Since 1994, some people claimed that some alien implants were found in the human body through surgery, but it is worth noting that they are various. Some look like glass fragments, some like triangular metal, and some like carbon fiber. These foreign bodies are not placed in the brain or nasal cavity, but in the toes, hands, tibia and external ear. Some people still have scars, and of course some people don't. Doctors know a simple truth, that is, objects on the ground may enter the body without being detected. When people jump from a height to the ground, or run barefoot on the beach, or even run on the grass, foreign objects may plunge into a certain part of the body. " People find all kinds of mysterious objects in their bodies, but so far they have nothing to do with aliens.

4. The 4.UFO era is coming.

Event:1June 24th, 947, the modern UFO era began. At that time, a man named Kenneth Arnold saw nine flying saucers flying at high speed in Mount Victoria, Washington. It wasn't long before someone claimed to have seen a similar UFO, creating an unprecedented "commotion".

Truth: The name "UFO" is very common among Americans and UFO fans, but this is the result of a reporter's mistake. A reporter from East Oregon reported after interviewing Arnold that he saw a mysterious circular object flying in the air. In fact, Arnold said they were crescent-shaped. He also said that these objects "fly irregularly, just like you throw a plate into the water", but he didn't say that what he saw was very similar to a plate in real life. However, it was this dish that triggered the UFO craze, and many people claimed to have seen the so-called "UFO" that Arnold had never described.

5. Dissecting Alien Movies

Event: Blurred black and white film appeared in 1995, which increased the credibility of 1947 "Roswell UFO crash". This top secret film shot by the army shows the whole process of dissecting alien bodies, which has become evidence that some UFO fans have always claimed that the US government has alien bodies.

Truth: This film about alien autopsy was broadcast on Fox TV soon after, which caused many people to have strong doubts about the authenticity of the film. Skeptics (even many UFO researchers) regard the film as a scam and point out the illogical and contradictory places in the film. However, due to the lack of sufficient evidence to overturn the Roswell incident, some people still insist that the autopsy is true. Earlier this year, the special technician who "soaked" aliens in this film admitted that it was actually a scam. This surprised many UFO enthusiasts.

6. Mars face

Event: The description of Mars by Richard hoagland, the author of Remnants of Mars: A City on the Edge of Time, may be strong evidence of the existence of high IQ aliens. Hoagland said that photos taken by NASA in Quitonia, Mars, showed that there was a human-like face there. He pointed out that it must have been built by highly intelligent creatures and revealed that there were alien cities on Mars.

Truth: "Mars face" is actually a typical example of wishful thinking. In 1976, the satellite Viking 1 took this photo, showing a fuzzy area like a human face on Mars. Since then, some clearer photos about this area have come out, such as "Mars Global Observer" spacecraft 1998. Later, these photos show that the Togna area has been seriously eroded, and this "face" is just an illusion created by the clarity of the picture and the light and shadow.

7. Crop circles

Event: It is the most convenient way to explain mysterious circles and other patterns that sometimes appear in farmers' fields with aliens. Until today, humans have not deciphered the symbols or information left by these aliens.

Truth: Although movies like Quadrant explain crop circles, there is no evidence that crop circles are made by extraterrestrial intelligence. So far, the best explanation for it is pranks, rather than aliens traveling in the vast universe coming to the earth to leave some information and destroy the wheat in the British and American countryside. How can aliens with advanced intelligence not realize that the information they left behind is incomprehensible and not direct enough for human beings?

8.5 1 area

Event: "5 1 Zone" is the place where the U.S. government stores and studies alien bodies and planes, including the alien spacecraft that crashed in Roswell. Some people even say that this is an officially approved landing base for alien spacecraft.

Truth: The simple fact is that people know nothing about the actual situation of this military base near Dry Lake in groome, Nevada. Although people like to call it "5 1 area", in fact, such a title does not exist in official documents. This is a top secret military base. Naturally, there are many reasonable government and military reasons to maintain its use intention. Of course, this has nothing to do with UFOs. Leslie Starr, a reporter for the old American TV news program "60 Minutes", said that there may be a lot of toxic waste piled up in this heavily guarded military base. There is no reason to associate it with aliens, but there are secrets here that are not known to outsiders.

9. Mysterious death of animals

Event: Aliens did not kidnap human beings, nor did they implant some strange things in people, nor did they leave "crop circles" in farmland, but aliens came to the earth to slaughter livestock. Since the 1970s, hundreds of animal carcasses have been found, all of which have unexplained features, such as no blood in the body and organs being removed by "precise surgery".

Truth: Over the years, the bizarre death of livestock has been puzzling farmers and farmers. However, it was not until recent decades that people became interested in UFOs that some people thought that the death of livestock was related to aliens. Research shows that this so-called "mysterious" death is actually very common, which is caused by natural decay process and scavengers. Strangely, some people attribute this phenomenon not only to aliens, but also to the demon ritual and blood-sucking animals called "Zhuobaicabra" in Spanish folklore.

10. The Great Pyramid

Event: Science cannot explain how the Great Pyramids of Egypt were built, nor can it give a reasonable explanation for their perfect arrangement and design. Some people think that aliens must have played an important role in building these magnificent buildings thousands of years ago.

Truth: Many people think that people who lived in early times (such as ancient Egypt) were not so smart, and it was impossible to create those engineering miracles without the help of aliens. In fact, this view is wrong Many materials have recorded the methods of building pyramids, such as National Geographic Magazine and Mark Lehner's The Perfect Pyramid. Now it can be said that the only puzzling thing on the pyramid is why some people still think it is related to aliens until today.

Although there is no direct evidence to prove the existence of extraterrestrial life and extraterrestrial civilization, scientists believe that life is the inevitable result of the development of matter under certain conditions, and the earth will never be the only planet with life in the universe. An important aspect of our exploration of the universe is to explore extraterrestrial life and find extraterrestrial civilization. Let's briefly introduce our exploration of extraterrestrial life and extraterrestrial civilization inside and outside the solar system.

Explore alien life in the solar system

As far as we know, among the major planets in the solar system, Mars is the first candidate for planets that may have life besides the Earth. The improvement of a series of multifunctional instruments for exploring life is related to the arrival of spacecraft such as Viking on the surface of Mars. On the principle of exploration, such an instrument can not only reveal the existing life, but also reveal the remains of the past life and the conditions that led to it. Two Viking spacecraft arrived on Mars in 1976. Each spacecraft has a lander that lands on the surface of Mars, and the rest stay in orbit to photograph most of the surface area of Mars. Each lander carries a sophisticated laboratory to find life forms. They did three experiments on Mars: photosynthesis experiment, respiration experiment and radioisotope experiment. Judging from the experimental results, at least no traces of life were found at the landing site of the lander. 1984, scientists discovered a piece of ALH8400 1 rock from Mars in the Antarctic, which fell to the earth as a meteorite after the surface of Mars collided with an asteroid or comet. From this rock, we found something in the shape of a thin tube, which looks like a fossil-the remains of ancient life preserved in the rock, so some scientists speculate that Mars once had life similar to bacteria. However, many scientists question this. The American rovers Spirit and Opportunity, which landed on Mars not long ago, made a field exploration of Mars. Although there is still no direct evidence of life on Mars, they have found conclusive evidence that there was a lot of liquid water on Mars. Scientists believe that there is no conclusion about whether there was life on Mars and whether there is life today. The best way to find out this problem is to land on Mars by manned spacecraft and conduct a comprehensive field investigation. Now, the United States, Russia and other countries are preparing for this matter, and it is expected that humans will land on Mars in recent decades. By then, the long-standing question of whether there is life on Mars will be completely clarified. Scientists believe that there may be extraterrestrial life in the solar system, besides Mars, there are also celestial bodies such as Europa. But so far, there is no conclusive evidence to prove that there is life on other planets in the solar system, and there is no human "bosom friend" in the solar system, but the possibility of low-level life such as microorganisms on some planets cannot be ruled out, so it is necessary to continue to explore this problem.

Looking for "bosom friend" in the vast universe

In view of the fact that there are no planets with intelligent life in the solar system, human beings have turned the goal of exploring extraterrestrial civilization to outside the solar system, and about 200 sun-like stars with planetary systems have been discovered. Because the distance between the stars is too large, it is unrealistic for human beings to fly to the planet where there may be extraterrestrial civilization for on-site direct detection from the current technical level. At present, there are two ways to explore extraterrestrial civilization: the first way is to bring the information of our earth to extraterrestrial intelligent creatures, the so-called aliens, through unmanned spacecraft; The second method is to make radio contact with aliens, or to monitor the radio waves they send out, or to actively send out information to announce the existence of intelligent life on our earth.

1March, 1972 and1April, 1973, respectively, American space probe pioneer 1 1 and pioneer 12 carried the same gold-plated aluminum plate named "earth business card", which was 22.5 cm long and 65438+ wide. As shown in figure 1, the structure of hydrogen atom is carved in the left half, the radiation carved in the middle represents the positions of some pulse stars closest to the earth, and a big circle and nine small circles carved below represent the sun and nine planets, and the detector is emitted from the third planet earth; Its right half is engraved with a nude portrait of a man and a woman, representing human beings on the earth.

1 In August and September, 1977, the space probes Voyager1and Voyager 2 launched by the United States both carried gold-plated copper records with a diameter of 30.5 cm. On this record called Voice of the Earth, 1 15 photos, 35 sounds and nearly 60 records were recorded.

Among these 35 kinds of sounds, there are: the paroxysmal roar of the young earth volcano, the rustling of the wind, the rushing sound of the river, the chorus of frogs and birds, the strange and pleasant singing of whales in their hometown ocean, the voice of people, the heartbeat, the sound of walking, the laughter of children and so on. Among the 27 world-famous songs, there are: Becky's Overture and Fugue in C, and Bronte Baker's First Movement and Second Concerto in F; Mozart's aria "Beauty in the Night" is played with an incredible flute. Spring Festival ceremony songs; Folk songs and music from all over the world-a Navajo nocturne, Louise Amsjo's four-step jazz dance with slow sadness, Flint Williamstow's darkness is night, and Chinese classical music "Mountain Flowing Water".

Among the many photos, there are: human sketches of the world, the position of the sun in space; A person's life-the birth, infancy and growth of a baby and the looming appearance of a complex life; Cities, houses, animals and plants, landscape paintings; Ocean, sunset; People hunting with spears, astronauts walking in the universe; Olympic sprint, traffic jam and Badaling Great Wall in China.

Among the greetings in nearly 60 languages, three are China Southern Dialects, namely Cantonese, Xiamen Dialect and Hakka Dialect. In addition, greetings to extraterrestrial planets are also included in ancient Sumerian language. These two records are also covered with a special aluminum sleeve, which can keep the records for 654.38 billion years.

Because the speed of the spacecraft launched by humans is less than one tenth of the speed of light, it takes tens of thousands of years to fly to the nearest star. We hope that these spaceships will be intercepted by aliens one day. In this way, the above audio-visual materials should enable these clever aliens to discover the earth. What will these intelligent creatures, invited by human beings, find after a period that no one can predict? -it may be an earth inhabited by distant descendants of human beings, who are different from us in intelligence and appearance, just as we come from those small animals that were our ancestors; It is also possible to find a polluted, poisonous and lifeless earth.

Obviously, this method of exploring extraterrestrial civilization is far less rapid than contacting aliens with radio waves. To apply the latter method, we must first learn to recognize the artificial signal in radio waves, and then we can exchange information with this signal. Archaeology tells us that when the Rosetta Stone was discovered, there was a major breakthrough in the translation and understanding of ancient Egyptian hieroglyphs. Rosetta stone is a thick plate with the same proclamation engraved in Egyptian hieroglyphics and ancient Greek characters. Fortunately, there is a Rosetta stone in the universe. When a civilization develops to a certain scientific level, it is realized that elements such as hydrogen and helium can be arranged in the periodic table. No matter where you live in the universe or at any time, this civilization can do this. There is a unique periodic table of elements and a large number of nuclear, physical, chemical and mathematical data, which is enough to establish a common language between two corresponding civilizations. With a common language, we can communicate with aliens smoothly.

1960, the United States made an "Ozma" plan to monitor the radio waves of two constellations in the universe by using radio observatories. This is a plan to passively listen to the voice of extraterrestrial civilization. "Oz" is a place name in fairy tales. A princess named "Ozma" lives in a very strange, remote and inaccessible place. The meaning of the plan is "looking for distant extraterrestrial civilization", and the purpose is to search for calls from "aliens". The Observatory uses a radio telescope with a diameter of 26 meters, and selects a wavelength of 2 1 cm to receive external signals.

Drake and others first aimed the radio antenna at a sun-like star in the constellation Cepheus, which is 1 1.9 light years away from the Earth. The result was nothing. Later, they aimed the antenna at another target-E star in the constellation Bojiang (0.7 light-years away from the Earth/kloc-0). At first, they received a strong radio signal with 8 pulses per second, which reappeared after 10 days. However, this is not the expected "alien" telegraph signal. Ozma planned to "monitor" 150 hours within three months, but ultimately failed to achieve any successful results. Nevertheless, this has created a new era for human beings to find intelligent life outside the earth. 1972, astronomers launched the "Ozma II Project" to search for aliens, and received a "wow" signal in 1977. However, this signal never appeared again.

1974 165438+1October16, the arecibo radio telescope completed in Puerto Rico sent the first telegram to the globular cluster M 13, which conveyed the information of the earth and human beings.

The globular cluster M 13 is more than 20,000 light years away from the sun and 200 light years in diameter. There are hundreds of thousands of stars in the cluster, among which there is a high probability of intelligent life. Although we don't know where the planet with intelligent life in this cluster is, as long as there is intelligent life around a star in the M 13 cluster and there is a radio telescope as powerful as ours, they may receive our contact signal. This telegram compiled with binary numbers has a total of 1679 zeros and 1. Telegraph compilers believe that the 0 and 1 expressed by two radio frequency changes can be explained by any civilization in the universe that has mastered radio technology. Because the number of words in the telegram is 1679, which is exactly the product of 23 and 73, the words in the telegram can be arranged into a rectangular code diagram with 73 lines of words and 23 words in each line. Black out all 1 in the picture, and you can get a chart that hides the rich information of the earth and its people. After receiving this telegram, clever aliens can analyze this code map, and then they can know five basic elements, such as hydrogen, carbon, nitrogen, oxygen and phosphorus, organic molecules composed of these elements, human genetic DNA and double helix structure, human humanoid patterns, average height and population, schematic diagram of the solar system, location of the earth where humans live, schematic diagram and diameter of Arecibo Observatory, etc.

1985, under the leadership of holloway, an astrophysicist at Harvard University, a new plan to explore aliens-Spatial Multichannel Analysis (META) was started. More than 8 million alien civilizations have been detected by high-intensity automation with different frequencies, and the scale is equivalent to 1 minute completion 1 10,000 Ozma plans. Because the frequency band has increased by tens of thousands of times, the corresponding workload has also increased, and it takes 200-400 days to conduct a general survey of space. In addition to the United States, the former Soviet Union, Australia, Canada, Germany, France, the Netherlands and other countries all participated in this exploration plan.

1992, the United States implemented the "Phoenix" program to search for intelligent life in outer space, using the largest astronomical telescope and radio telescope at that time to search for radio signals of different wavelengths emitted by various celestial bodies in the universe.

Although electromagnetic waves travel very fast, it takes a long time to complete an interstellar dialogue because of the long distance between stars, ranging from decades to tens of thousands of years. This restriction leads to the required interstellar dialogue between human beings and aliens, but between human beings and aliens. For example, when we send a message to each other today, usually the descendants of the other party receive the message, and then the descendants of the other party reply, and only our descendants can receive this reply. It can be seen that it is a long and thin road for human beings to explore extraterrestrial civilization.

At this moment, astronomers will continue their research, trying to improve his understanding of human position in the universe and its relationship with the universe. As for the future, as an astronomer said, it is possible for human beings to travel further in a space that may increase with time according to redshift; Instruments will be more and more expensive, but progress will be slower and slower. Today, our vision has gone deep into the universe, and we know our neighbors quite clearly. But as the distance increases, our knowledge becomes less and less. But we will continue to work hard to find the deeper depths of the universe until the darkest horizon. This effort is longer than history. It didn't get what it wanted, but it wasn't constrained.

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