Intelligent life living outside the earth

The birth of cosmic galaxies

The universe was born in a pea. At some point between/kloc-0.5 billion and 20 billion years ago, there was a big explosion and it began to expand continuously until today.

The universe consists of 654.38+025 billion galaxies, and the Milky Way is just one of them. On the edge of the Milky Way, there is a solar system, which has nine planets. The earth is one of them, and we humans and other life were born on it. The earth is the cradle of human beings and the birthplace of life, but is it the only place where life was born?

Explore life beyond the earth

Is the earth the only living planet in the vast universe? Is it the only planet with intelligent life? Such problems have always attracted human attention. From the worship of gods in ancient times to the exploration of aliens today, it strongly stimulates human beings to hope that one day they can uncover the mystery of life that has long plagued them.

Today, with the rapid development of science and technology, human beings use a lot of modern high-tech means to explore alien life. Hubble Space Telescope recently discovered that the universe contains about 654.38+025 billion galaxies, which is much larger than the original estimate that the universe contains about 80 billion galaxies. We know that there is an earth in the solar system on the edge of the galaxy, on which life was born and intelligent life evolved. When there are amino acids, formaldehyde and ethanol that make up protein on the earth, it is possible to have life. There are about 400 billion planets in the Milky Way, of which 10% is similar to the solar system. In this way, there may be life on 40 billion planets. According to infrared satellite research, the climate of 10% planet is neither too hot nor too cold, so we can infer that there is life on 4 billion planets in the Milky Way. Advanced intelligent life conservatively estimates that there is only one planet in 10 thousand, and there are 4000 civilizations. More conservatively, there are 400 neighbors with us. With this 40 billion * 125 billion, astronomical figures are still the planet of advanced life!

It has been about 4.6 billion years since the birth of the earth, and the birth of life is only a moment relative to the universe. Our sun is in its heyday, but it will eventually die. At that time, human beings will emigrate to other planets and live on new ones. Stars are constantly produced and dying, and some will die. Life is constantly emerging, evolving and developing. Life may be destroyed with the planet, but it is more likely to evolve and escape extinction! According to our present time, what will human evolution look like in 2 billion years? What kind of technology will there be? On the other hand, what kind of technology does the living planet 7 billion years ago have now? What kind of development?

At present, the latest scientific and technological means have obtained evidence of various life forms for human beings: 1) Comet dust may contain life components, which are composed of ice and stones and contain organic substances needed for the formation of life. When a comet hits the earth, it will bring cosmic life to the earth and may also bring life to other planets.

2) Life is not afraid of high temperature. In the Pacific crater, scientists accidentally discovered that many life forms were active around the boiling hydrothermal vent. The reproduction of lower life forms is to absorb the most basic and even toxic substances from hot magma to maintain life, and there are chemical changes necessary for early life in these vents. If life can survive and multiply in a high-temperature and toxic environment without sunlight and containing sulfur, the places where life can be found in the whole universe will greatly increase. This new discovery by scientists proves that life also exists in some extreme environments on the earth, and these creatures rely on chemical reaction energy instead of photosynthesis energy to survive, which gives people a new view on the theory of life existence. These terrestrial life that can survive under extreme conditions can completely survive on those seemingly "dead" planets.

3) Jupiter's moons have oceans: Europa and Callisto are most likely to find life forms in the solar system. Jupiter can be said to be a planet without a sun. Its surface is not solid, and it will heat itself. On Europa and Callisto around it, scientists have found huge underground oceans, which makes people hope that there may be life on them. There may be "warm ice" or liquid water under the broken ice on Europa's surface. It is the brightest of Jupiter's sixteen known moons, and it is about the size of the moon. The surface of this satellite is covered with crystal clear and brownish ice. In some areas of the satellite, the ice layer keeps breaking to form separated large ice blocks, and then they move and collide with each other. The ice is still moving, indicating that there are still higher temperature ice bodies under the satellite ice layer, and even water appears, which is constantly gathering in the surface ice layer. This discovery is the only place other than the earth where oceans may exist.

4) People know that life has a great relationship with water, and water breeds life. Recently, scientists have continuously discovered the existence of water in the universe with advanced instruments. There are signs of water vapor in Titan's atmosphere. A large amount of water vapor was found in the Orion nebula. There is also water on the nearest moon, which exists at the two poles of the moon in a frozen state, and the amount may be as much as 654.38+000 billion tons. The discovery of these waters is of great significance, which makes it possible to produce life in the universe.

5) Scientists point out that it is not necessarily only planets that can produce life. Satellites of some planets outside the solar system: If they are at least one-tenth the size of the earth, and have an atmosphere and a strong enough magnetic field, they constitute an environment suitable for life. Recently, it has been found that there may be two planetary systems, Ursa major and Virgo, which meet the above conditions. They are 35 light years away from the earth, and the local environment has the characteristics of allowing water and other life-sustaining conditions to exist. It is ten times bigger than Jupiter and can be seen with the naked eye from the earth. The estimated surface temperature of the planets around Virgo 70 is 85 degrees Celsius, which is just within the temperature range where water and other life-supporting chemical conditions exist. This temperature provides an environment for the existence of complex molecules. The planet may even have rain and oceans. On the other hand, the estimated surface temperature of the planets around Ursa Major 47 is low, about -80 degrees/℃. Scientists say that there may be an environment where liquid water exists in a certain area of the planet's atmosphere. The planet is located in a galaxy similar to the solar system, similar to the earth and the sun. Although these two planets are full of gas and lack the surface of life development, they have satellites similar to Jupiter in the solar system, and the satellite temperature of Virgo's new planet may be more suitable for life.

There is increasing evidence that there may have been life on Mars. The rocks on the surface of Mars are very smooth, and there is sand on the ground. The landforms of the landing site of "Mars Pathfinder" are very similar to those of the earth's surface washed by floods.

7) American scientists believe that life on earth may have originated from space. Regarding the origin of life, scientists put forward the theory of "chemical soup", which is composed of a large number of inorganic molecules in the ocean, making life appear. Polycyclic aromatic carbon chloride has been found in interstellar clouds, which is very useful for the composition of life. Meteorites falling on the earth contain organic compounds such as amino acids and fatty acids. They played a certain role in the origin of life on earth.

In our solar system, scientists believe that the planets most likely to have life are Mars, Europa, the satellite of Jupiter, and Titan, the satellite of Saturn.

In order to search for extraterrestrial life, 1998 held an international conference on searching for extraterrestrial life in the United States on July 20. The conference lasts for three days, and more than 100 scientists from all over the world plan to look for the blueprint of extraterrestrial life in the next five years. This meeting discussed the biological basis of life forms on other planets, the technical difficulties in detecting extraterrestrial life and how to carry out activities to find extraterrestrial life in space. They think there should be life on other planets besides the earth. Many new discoveries in recent years have convinced mankind that it is not a question of whether there is extraterrestrial life, but a question of how to exist and how to find this life form.

These exciting discoveries tell us that "alien life does not exist, and we humans may not be alone!"

Author: Zhou

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First of all, life outside the earth

Have you ever imagined that humans on the earth in the twentieth century were not the only intelligent animals in the universe? Because no one is from another.

There are human bodies from 20 planets on display in the museum for us to visit, so there is a saying that "the earth is the only planet with humans".

Method, is still indisputable. However, when we carefully study the newly discovered data, a series of problems appear.

Astronomers say that on a clear night in Wan Li, about 4,500 stars can be seen with the naked eye. From a little astronomy

In Taiwan Province's telescope, nearly 2 million stars can be clearly distinguished; From modern refractive telescopes, millions of Li Can.

The light outside-the light spot in the Milky Way-is brought into the observer's field of vision. In this vast universe, what we have

The galaxy of Genus is only a small part of an unparalleled galaxy. It is said that it is within the Fiona Fang radius of 654.38+500,000 light years.

In this cluster, * * * includes 20 galaxies. Is such a huge number of planets, and through electronic telescopes.

Compared with thousands of spiral nebulae, it is still nine Niu Yi hairs. Here, I should emphasize that today's research is like this.

But this is really just the beginning.

According to astronomer harlow shapley's estimation, within the scope of the telescope, there are about

10

Estimate. If we continue to speculate according to this estimate, we think that there is life in one planet in 1000.

The indispensable condition of life is still a 10.

Of the amazing number of planets, how many have air suitable for life? One thousandth? although

So, there is still a 10.

It is said that in this figure, only one thousandth of the earth has life, and we can imagine that there is life.

There may be as many as 100 million planets. This figure was measured with the popular telescope. But let's not forget

Well, these technologies are constantly improving. "

According to the hypothesis of Dr. stanley miller, a biochemist, people think that things needed for life.

Generally speaking, on these planets, it may develop faster than on earth. If we accept this bold statement, then

There are at least100000 planets, and their civilizations are more advanced than those on earth.

Willie Ley, a friend of the late science writer Wernher wernher von braun,

Once in new york, he told me, "It is estimated that there are about 30 billion planets in our galaxy alone. Our galaxy

Today astronomers have realized that the solar system includes at least 654.38+0.6 billion solar systems. We are now trying to raise this question.

The number decreases, assuming that the distance between solar systems is very regular, and only 1% of the planets are also around themselves.

Yang trajectory, then there are 65.438+08 billion planets, which have the ability to sustain life. Let's further assume that many of these can

Only one percent of the planets that support life can really support life, so we should have 6.5438+0.8 million planets.

Life exists. Let's further assume that one planet in every 100 living planet is alive, which is equivalent to human intelligence.

Animals, even from this last hypothesis, our galaxy should have 18 thousand creatures.

Star. "

According to the latest calculation, there are 1000 billion fixed planets in our galaxy, which is more careful than Dr. Lai's calculation.

Numbers, I don't know how many times higher.

In addition to these, we assume that there are 18000 planets, which have the necessary conditions for life on earth.

Pieces. Of course, we might as well make some discounts, assuming that only 1% of the 18000 planets are really alive.

Creatures, there are still 180 planets inhabited by creatures.

There is no doubt about the existence of planets whose situation is comparable to that of the earth; That is, it has the same air humidity and the same gravity.

Force, the same plant, even the same creature. However, we have to ask, there should be a life support system equivalent to that on the earth.

Is the condition necessary?

The idea that life can flourish and grow only if it has the conditions on the earth has been abandoned. Think not.

The view that life can't live on water and oxygen is wrong. It is on the earth that some life forms do not need oxygen.

For example, anaerobic bacteria are an example, and a certain amount of oxygen is undoubtedly harmful to them. Therefore,

In higher life forms, why shouldn't there be life forms without oxygen?

Under the influence of ever-changing new knowledge, we should bring our spiritual world to reality. Focus only on the ground

Until recently, scientific surveys on the planet praised our world as the only ideal planet: it is not too cold, nor is it.

Too hot, plenty of water, inexhaustible oxygen, organic organization often makes nature full of interest.

In fact, the statement that life can only survive and develop on a planet like the earth is untenable. It is estimated that

There are two million kinds of life on the earth. Of these creatures (of course, it is still estimated), 1.2 million is a family.

Known in science. These are life known in science. According to popular saying, there are still thousands of species that are infertile after all.

Saved. Therefore, the living conditions of life have yet to be considered and tested.

For example, it has always been thought that water with high unit radioactivity can avoid bacterial erosion, but in fact some bacteria are full of atomic reactions.

In deadly water, you can also adjust yourself and adapt. The experiment made by biologist Dr. Sanford Siegel.

It makes people feel terrible. In the laboratory, he designed the atmosphere like Jupiter, and cultivated bacteria and children in this atmosphere.

This gas layer does not have the necessary conditions for our life. And ammonia, methane and hydrogen can't make these little things.

Go to hell. Dr. Howard Hinton and Dr. Bram, entomologists at Brestau University.

(Dr. Bloom) Two people's experiments got the same amazing results. The two of them hid some bugs at 100 degrees Celsius.

At a temperature of 0 degrees for several hours; Then, these "prairie dogs" are immersed in liquid helium, which is well known.

Cold as space. After the strong light, these bugs were sent back to their original environment. These bugs are still alive.

Bob, hatch completely healthy bugs. In addition, we also know that some bacteria grow in craters and some eat rocks.

Raw, some can make iron. So there are more and more problems.

Many research centers are continuing their experiments. Life is by no means limited to the evidence on our planet, and it is constantly being sent out.

Now For centuries, the whole world has revolved around the laws and conditions of life on earth. This belief confuses us.

Observe the direction of things. It's like putting a blindfold on the eyes of scientific researchers. When they observe the universe, they won't hesitate.

Carefully accept these existing ideological systems and norms. De Xia Ding, an epoch-making great thinker, realized that

Because only dreamers have the opportunity to gain insight into the mysteries of the universe.

If we look at it from another angle: as thinkers on another planet, we follow their way of life.

Standard. Suppose they live in a temperature of-150 to 200 degrees Celsius. They think that temperature (as far as we know,

This is necessary for life on other planets. This is the same as we used to explain the dark past.

What is the difference in the logic of the period?

Being rational and objective is likely to hurt our self-esteem. Sometimes, a bold assumption is like a black hole.

Tobang, but you know, how many utopian ideas have become real examples of daily life for a long time! while

However, the example given here is somewhat far-fetched. But once the incredible things happen today, the obstacles will be removed one day.

Many secrets of the universe will come true. The future world will discover the facts that we dare not dream of today. although

At that time, we couldn't see all this, at least they couldn't arbitrarily think that they were the only wise men who had never been there.

It is estimated that the age of the universe is between 8 billion and1200 million years. From the microscope, we can see the organic matter on the meteorite.

Traces; Millions of years old bacteria are slowly resurrected; Embryos floating in the universe are occasionally attracted by the gravity on the planet.

For millions of years, new life has been constantly innovating and developing, and all kinds of fossils distributed in the world have been proved by careful investigation.

The earth's crust was formed 400 million years ago, and according to science, human beings existed/kloc-0.0 million years ago. In this huge

In the torrent of time, human history is accumulated by countless hard work, countless adventures and curiosity, and also

It's only seven thousand years. So the 7000-year history of human beings is nothing compared with the life span of the universe of hundreds of millions of years.

And then what?

We (the spirit of all things? It took 400,000 years to reach today's civilization and achievements. But who can testify?

It is said that why are there no more favorable conditions for other planets to develop civilizations equal to or higher than ours? What is the reason?

By making us believe that there are no creatures on other planets equal to or beyond us? We can put this

Leave some fake settings? However, we did it after all.

Why do we abandon the crystallization of wisdom so arbitrarily? For hundreds of years, we always thought that the earth was flat;

For thousands of years, I firmly believe that the earth revolves around the sun; We have always thought that the earth is the center of the universe. As it turns out, the earth only has

It's just an ordinary planet. It is only 30,000 light-years away from the center of the Milky Way.

We should admit that our understanding of this chaotic and vast universe is very limited. Only then will we

Admit that you are a tiny point in the universe. But our future and luck are hidden in it, just like "God".

answer

Only when we have insight into the future can we have a faithful discussion about the past without fear.

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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 believe that 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 quite a few of them 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.

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