Excuse me, do humans have the ability to settle outside the solar system? Why?

At present, technology does not allow it, and the nearest habitable planet is 4 light years away. According to the fastest spacecraft at present, it will take 380 years to arrive. Life is not allowed.

In interstellar travel, the human body has been in a state of weightlessness, which is also a kind of harm to the body itself and will accelerate the aging of the human body. Some scientists imagine that freezing the human body with freezing technology and then thawing it with the automatic program of the spacecraft at the destination has great risks, that is, adjusting the orientation and avoiding meteorites during navigation.

At present, it is impossible. Even if people all over the world in Qi Xin tighten their belts to maintain the minimum living standard, it is impossible to spend all their money on building the theoretically most advanced space shuttle.

As for the explosion theory of science and technology, it is a false proposition in itself, and at best it is only a summary of a phenomenon in recent thousands of years. Scientific and technological breakthrough * * *, only a few times, blindly using mathematical induction, is too optimistic. What's more, the complexity of technology is getting higher and higher. The stone age was well understood, and the principle of internal combustion engine of steam engine could be understood in middle school. But today's science has become more and more detailed, and any field, even if it seems simple, is beyond the understanding of laymen. Complexity is the trend, in all aspects. It doesn't mean that everything will be all right as long as one or two things are broken in any aspect. For example, even if we give human beings a perpetual motion machine with arbitrary power, an absolute rigid body that can be shaped at will will never deform afterwards. Humans can't build a decent space shuttle, and it won't even have any significant impact on today's life. The current power generation capacity can meet the needs of human beings for a long time, but the problem is that there are not so many places that need energy. In the final analysis, it is the problem of economic productivity itself.

On this question, I can only answer: at our current level of science and technology, human beings will never be able to settle on planets outside our solar system.

Michelle Mayol, an astrophysicist, said, "Humans will never be able to move planets outside our solar system.". He firmly believes in this.

He said that exoplanets are too far away for human beings. You know, even if there is a nearby livable planet, it is hundreds of thousands of light years away. And it took us longer to go to that planet than we thought.

Let me give you an example: at the speed that the highest technology can achieve now, it will take tens of thousands of years for us to get out of the solar system with a diameter of only about two light years, not to mention hundreds of thousands or even hundreds of thousands of years to reach the planets outside the solar system. Obviously, such a long time is not suitable for large-scale migration.

Many people hope that human beings can get out of the solar system, but if they want to get out of the solar system, that means breaking through the limitation of distance first. At present, even the Voyager probe has never left the solar system, let alone humans.

So if you want to explore the mysteries of the universe, you must have the ability to explore the universe. Instead of thinking about moving to other planets, it is better to spend energy on protecting the earth. As long as we protect the earth, we don't have to consider the issue of immigration.

Of course, we must also have confidence in technology. You know, ancient people traveled around the world by walking and carriage, which was unimaginable at that time. Now we can have planes and high-speed trains. So maybe a hundred or a thousand years later, the speed of transportation will have a qualitative leap, which is also difficult to predict.

So I can only give this answer: at present, human science and technology can not be migrated to other planets, but the future can be expected.

At least not yet.

The biggest obstacle to interstellar migration is actually far, and it is really super far. Take the moon as an example. It is 380,000 kilometers away from us. A little further, Venus is tens of millions of kilometers, and Mars is 50 million kilometers away from us, hundreds of millions of kilometers.

But to go out of the solar system to the nearest star system, such as neighboring star B, 4.22 light years away. At our fastest flight speed (or without manned flight), it will take tens of thousands of years to fly there.

Scientists estimate that the average distance between star systems in the Milky Way is about 3 light years. Therefore, in fact, the scale of celestial bodies is almost negligible relative to their previous distance.

In this way, several technical problems such as rocket carrying capacity, fuel and human life are actually problems that we can't overcome at the moment.

If we must achieve immigration, the best way is to let robots and 3D printers pass by, but people can't, because people can't afford such a long-distance immigration. After the robot goes, it may be a feasible method to print human genetic material, protein, etc. Use the past DNA information for 3D printing, and then print it with a 3D printer there.

Answer: within the current theoretical framework, it is impossible now and it is impossible in the future.

The theme is a little too far. At present, we humans, even the nearest celestial body (the moon) can't settle down, and other celestial bodies in the solar system are just an illusion, so we can only send a detector to see the level.

Let's take the nearest planet (neighboring star B) as an example, which is 4.22 light years away from our earth. What is this concept? We all know that the distance from the moon to the earth is 380,000 kilometers, and the distance from neighboring star B to the earth is about 6.5438+0.04 million times that from the moon. The distance from proxima centauri to the earth is 277,000 times that from the earth to the sun.

Under our current theoretical framework, the speed of light is unchangeable and cannot be surpassed by practice, otherwise it will not become the ruler of the tensor universe in the end. The so-called traveler 1 who flew out of the solar system has been flying for 40 years, and it is still 2 billion kilometers away from the sun, which is still far from flying out of the solar system. If someone says, you can continue to accelerate, the question is, do you have that much fuel to carry?

Some people say that solar sails, gravity slingshots and curvature engines can all be used in the future. I can only say that the first two are not feasible at all. When it is too far away from the sun, the solar wind is basically weak and cannot be accelerated. The speed of celestial bodies in the solar system is not enough to accelerate the aircraft to escape from the solar system, otherwise they would have run away; Think about the curvature engine. Where can you collect so much fuel and negative density substances from that engine? There is one in the universe. The key is, can you collect it and take it back? Accelerating the earth to the speed of light consumes almost all the negative density matter of the star mass in the whole universe. How to make this thing?

Due to the speed limitation and theoretical limitation of human aircraft, the speed cannot be too fast. In this case, it will take a long time for us humans to walk there. If the time is too long, we need to eat, drink, sleep and consume all kinds of materials. Well, the cost of this trip is too high to afford. The most important thing is that if we can make the speed of the aircraft reach 1%, it will take more than 400 years to fly, and the life span of people is 100 years, but time is still not enough.

Although it is difficult to reach, it does not stop people from yearning for the universe and other planets. Some scientists hope to make an attempt in this respect, that is, to break through the star shooting plan. This is the first interplanetary navigation plan put forward by human beings, hoping to use laser to accelerate the micro-aircraft to reach the south gate in a few decades. They hope the plane can make a stopover when it flies through proxima centauri Centauri, and then take a picture of neighboring star B and send it back. If the plan is successful, it will take us 50 years from launching this little thing to receiving the photo of neighboring star B sent back by it. To be sure, I can't catch up with its photos. I hope that my friends will look forward to it.

In fact, there is still a very serious problem, that is, even if all the difficulties mentioned above are overcome, there is still a very realistic difficulty before us. Judging from the 6000 or so planets found outside our solar system, none of them are suitable for human beings to live on the earth. No habitable planets have been found in the universe. Even if we humans have mastered all the technologies related to interstellar travel, we don't know where we should go and where we will eventually go after leaving the solar system.

From the process of our layer-by-layer analysis, we can see that it is simply unrealistic to realize interstellar migration within our current theoretical framework. Perhaps in a few hundred years, there will be a major breakthrough in human science and technology, and it is not impossible for interstellar navigation to become as convenient as high-speed rail. However, at present, it is useless to wash and sleep and do what you should do. Leave this attempt to those scientific lunatics.

Interstellar travel has a strong purpose, either riding the earth to find a home like the movie The Wandering Earth ... or as an advance team, paving the way for the human bridge on the "wandering earth" ...

If we think of interstellar travel as an outing: driving a private car, carrying a few pieces of bacon and a bottle of red wine in the trunk ... setting out for a place with pleasant scenery ~ having a good time, and finding a restaurant to eat at night ~ going home ... so simple? All wet!

If you don't make enough preparations for interstellar travel, it may be that the meat buns hit the dog ~ there is no return!

Then, if we are fully prepared, can we reach the level of living outside the solar system with our current scientific and technological level?

Interstellar tourism needs far-reaching energy. The status quo is: we don't have strong and lasting portable energy.

Maybe we should place our hopes on the "artificial sun" or other energy sources that can output powerful energy.

According to the current level of science and technology, it may take hundreds of years for us to cross the universe. According to the previous experience of Apollo program in space. Our human activities in space are treading on thin ice. Any small mistake will lead to irreparable failure ~ just like the tragedy of Challenger and Columbia spacecraft. Interstellar travel requires us to have the opportunity to try and make mistakes, which is also a necessary hard condition. Our control system should be backed up, our personnel should be backed up, our plans should be backed up ... and a foolproof backup will make interstellar travel particularly complicated. Take the size of the spacecraft, which may be ten times or even hundreds times larger than what is really needed. ...

On the one hand, interplanetary travel will inevitably encounter collisions with asteroids or meteorites. Meteorites and asteroids several meters to several kilometers in size are almost as fragile as eggshells according to human spacecraft. In the event of a collision, there is no doubt that there is absolutely no hope of survival.

On the other hand, there is the threat of cosmic rays. If you want to block cosmic rays, you must have an ice layer hundreds of meters or even thousands of meters thick, and the rock layer can effectively block the deadly attack of cosmic rays. A hollow asteroid as big as the moon is the ideal carrier! )

The secular desire of human beings is a huge stumbling block on the interstellar journey, and people will be locked in a closed space, just like going to jail. In this case, people with weak willpower will soon be destroyed by boredom and loneliness day after day.

People's jealousy, greed, sympathy and disappointment will make people more and more like trapped animals and gradually get out of control. Interstellar travel needs human spiritual support. For example, religion, the mutual comfort between ordinary people has completely failed ... The dark and eternal deep space will drain the beautiful things in the traveler's body, grind them into powder, and scatter them in a lifeless vacuum bit by bit. ...

After careful consideration, we can't help asking ourselves: "Do we really want to live outside the solar system?"

In the foreseeable future, humans do not have the ability to settle outside the solar system.

The reasons are as follows: 1, the nearest star in the solar system, proxima centauri, is about 4 light years away from the Earth. There is no reliable data on whether this star system is an Earth-like planet. However, the speed of human spacecraft is far from the requirement of sending humans there. Planets outside the solar system that have been proved to be similar to the earth are farther away from the earth. Speed is the biggest obstacle to human migration to planets outside our solar system.

Secondly, up to now, the only way for human beings to understand the outer space of the solar system is electromagnetic wave (mainly visible light), but the nature and characteristics of visible light are still in the process of exploration. Therefore, human understanding of the outer space of the solar system is still at a low level.

To sum up, it is still too early to discuss the possibility of human migration outside the solar system.

If you say the current situation, sorry, it's impossible. Not to mention now, even in the foreseeable future hundreds of years, human beings can migrate outside the solar system. Even if human beings are very developed and can fly to the sun, there needs to be a basic premise that there is such a planet outside the solar system for human settlement. If there is no such planet, how can we settle down?

So now human beings simply don't have the ability to fly out of the solar system. What technology is needed to fly out of the solar system in the future?

First of all, look at the size of the solar system, with a radius of about one light year. This distance is not worth mentioning in the universe, but it is a big hurdle for human beings! This means that we must completely abandon the traditional chemical fuel as power drive and start a more effective power drive. For example, controlled nuclear fusion can theoretically reach the speed of light of 10%, and it takes 10 years to fly out of the solar system, and it takes 43 years to fly to proxima centauri, the star system closest to the sun!

If humans want to move out of the solar system, the speed of 10% light is also very slow, because 43 years is equal to half of human life. Although sublight flight will have time expansion effect, it is not obvious, only when it is very close to the speed of light!

Therefore, some indirect "superluminal" method may be necessary. For example, the concept of "warp drive" or "wormhole" is often mentioned. Once you master these two ways, you can fly faster than light!

However, we must be sure that there is a terrestrial planet, rather than speculating that it may exist. Otherwise, what's the point of flying to earth-like planets and finding them unsuitable for survival?

So, on the whole, moving out of the solar system is only a dream at present. Before that, we should think more about how to transform and move to Mars. Relatively speaking, it will be easier to move to Mars, at least the distance is very close. We know more about Mars! And moving outside the solar system, even if you really live for another 500 years, you can hardly see it!

Sure! Only unexpected, no impossible, man is the soul of all things, and thinking is the top of the universe. Stephen Hawking, a very famous scientist, predicted that if human beings want to continue to reproduce, they must leave this world within 600 years, and there will be great changes in the next few centuries, including the possibility of human immigration into space. Humans have long been warned that robots may evolve faster than humans, and their ultimate goal is unpredictable. Hawking also said: "I am really afraid that artificial intelligence will replace human beings and become a new generation of species. The existing technology is enough to exterminate mankind. In the future, Al's intelligence and artificial intelligence will dominate mankind. Don't contact with aliens, don't try to contact with aliens, otherwise it may bring disaster to the earth. But there are also views that; Alien higher life is probably friendly, and the higher the civilization, the higher the degree of reverence for life.

Below I want to talk about my views; It is really hard to imagine that human thinking and imagination have such rich colors. Hawking's A Brief History of Time —— From the Big Bang to the Black Hole predicted the law of motion of the universe and how to look at it. Hawking believes that a black hole is not only inaccessible, but also has a life span, and (not to be underestimated or quite right) it also converts the swallowed matter into energy and releases it once in a while. From the outside, you can't tell what's in the black hole. You can throw a TV, a diamond ring or your biggest enemy in. (Don't be afraid to approach, it can also be a storage space. But all black holes can remember is total mass, angular momentum and charge. (also wise)

Hawking said: "Black holes cannot devour and destroy physical information. A black hole may lead to another universe. (There may be multiple BIGBANG in multiple universes, and this kind of bombing will come and go. Different universes have different substances. When the explosion stopped here, it began to explode there again. It's too noisy. The matter in this universe may taste antimatter, but without antimatter particles, you'll never find it. Once there is a little antimatter odor energy, it will also turn matter into nothing. It is more difficult to find than dark matter, dark energy and ether. He said: "If we fall into a black hole, we will disappear into this universe forever. (Good idea) But it will appear unscathed in another universe (magical place). The information inside the black hole is stored in the form of holographic images, which also makes the photographer more imposing. It is stored at the boundary of the black hole, allowing objects to escape from the black hole. Or enter another universe (maybe heaven), so if you fall into a black hole, don't give up, you can go out. " I don't know if these have been copied. They don't look like what the Great God said. If it's true, then why worry? Isn't it more carefree to go to other universes? )

Anyway, the words of the great god are unparalleled, and he is not qualified to judge. Whether a black hole is hairy or hairless, or whether it has entropy. In my opinion, everything that moves will have a temperature. Some people have concluded that black holes are formed by the collapse of large celestial bodies. It is not only formed in this way, but also has various properties. If a black hole devours matter or a large celestial body, it will not emit radiation. The bigger the black hole, the less radiation! It is not surprising that some people have cognitive errors, and it is commonplace! Each has his own ideas. I'll stop here first. If I say it here, how will I end up in the future? You can talk about it if you want to spray it. This is all for the good. I wish you a good mood every day!

Capable, because capable people can make tens of millions of tons of spacecraft take all the living environment on earth to take risks outside the solar system. These people can live in the spaceship for too many generations until they find the planet they recognize. The supplies, water, heavy hydrogen and even nutrition on the way can be supplemented, but only a small photo or a few photos can be taken. If possible, they must contact people on earth. Whether they can live a good life depends on their equipment and brains. The best result. It's risky to be far from the earth, so if it's not urgent, we need to build more stations. No matter what you do, there are risks. Just like the first astronaut, someone has to do it, otherwise people can't leave the solar system. I believe that there is an environment suitable for human survival in the universe, and a 10 million-ton space fleet can cross the solar system. I don't know who to ask for advice on how to communicate with alien creatures.