What is the possibility that human beings will not fly out of their home planet when they reach the end?

The "parent star" here is certainly not the earth or the "sun", but the whole vast "solar system".

After determining this problem, let's take a look:

What is the probability that humans will fly out of the solar system at the end of development?

The answer is 100%.

(The premise is that several people fly to the nearest exoplanet, which counts, instead of the whole human group moving out.)

The solar system is certainly big, but the end of mankind is also long.

Let's talk about the first point: how can we fly to the nearest planet?

Proximity B is a planet located in the South Gate binary system. According to the observation, the distance from the parent star is suitable and it is located in the livable zone.

Imagination map of the extrasolar planet neighboring star B, shot by ESO/M. Kornmesser.

This planet is 4.224 light years away, which is equivalent to:

270000 times the distance from the earth to the sun.

Obviously, with the current chemical propulsion technology, humans can reach Jupiter or Saturn at most.

However, due to the "end of human development" mentioned in the question, in the distant future, among all kinds of advanced propulsion technologies we use, the nuclear fusion engine may only be regarded as the most earthy one.

20 1 1 On March 9th, 2008, the speed of Voyager 1 was 17.062km/s, and at this speed, Voyager 1 flew 3.599 AU (the distance between the earth and the sun) every year. At this speed, it will take 73,600 years for Voyager 1 to fly away from the Earth and reach Centauri. (Data from the wiki "Voyager 1")

It is assumed that the nuclear fusion engine can increase the speed of the spacecraft by 1 00 times on the basis of Voyager1. So, the time to fly to the nearest exoplanet is 736 years.

Maybe it can be improved by 300 times, so the time to reach the exoplanet is 245 years.

Considering factors such as braking, even if it is about 300 years.

You think 300 years is a long time, but in interstellar travel, it is the shortest year.

Antonio Justamante Jacobs photography

Now, let's talk about the technology of "nuclear fusion engine" when it is extremely popular and mature.

After the propulsion technology is solved, there are many possible ways for human beings to reach the exoplanet neighboring star B.

First, the development of human hibernation technology

After the immigrant spacecraft flew out of the solar system, they hibernated collectively, leaving only one AI robot on duty.

Second, the way of human embryo

Several men and women took 5000 human embryos and several AI robots on the road. On the long road 300 years ago, people kept passing by, but because new embryos hatched into adults, there were always people on the spacecraft.

Third, the way of artificial natural reproduction.

Before the hibernation technology was mature, only a few men and women went on the road and multiplied along the way. Everyone was a "family".

…………

Relatively speaking, the second way is the most reliable, because human hibernation technology does not know whether it can be developed in the end.

Some people will refute: if you say so, it is also the same thing whether a nuclear fusion engine can be developed.

There is an essential difference here, because human beings have used nuclear fusion, such as hydrogen bombs. Billions of dollars have also been used to study Poly substations, such as ITER substations. However, there is no successful example of human hibernation.

The risk of the third way is that the future exoplanets will not be superior to the earth in race due to inbreeding and other problems.

As mentioned above, according to the current technology (20 18), humans can finally make a nuclear fusion engine and reach the nearest exoplanet 300 years later.

So:

At the end of human development, the probability of flying out of the solar system is almost 100%.

Because the "end of mankind" here can be 2 billion years later.

You are wrong! Maybe 1 100 million years later, mankind will be the end! !

Ok, then you say that in the next 65438+ billion years, humans will not be able to build a nuclear fusion engine.

Don't forget, we have been studying nuclear fusion power stations for many years.

ITER under construction.

What is the possibility that human beings will not fly out of their home planet when they reach the end?

To answer this question, I still emphasize that friends who like science must use mathematical thinking and scientific methods to discuss problems! Only with strict standards can we make a scientific judgment on things, otherwise any conclusion can't be absurd, but it is certainly unscientific.

Now let's look at the topic: How likely is it that human beings will not fly out of their home planet when they reach the end? To answer this question, we must clarify several concepts in the topic, determine a unified standard, and then answer.

First concept: parent star, does the concept of parent star refer to the earth or the solar system? Galaxy? Or the whole universe we live in now.

The second concept: what is the definition of flying out? Is it a centimeter away from the home star? Or ten thousand meters? A light year? Or is it due to the gravity of the "parent star"?

The third concept: human beings, means that even if one of the human beings leaves, the whole human race will leave together?

Because the subject in the topic is not clear, so I will answer according to different definitions:

1, the home star refers to the earth, and human means that as long as a person leaves, flying out is one centimeter away from the earth. Then I can fly out with my feet off the ground, and then I will come back in a second; Of course, if you count airplanes, hot air balloons and so on, it will take me longer to fly out of the earth. At the same time, it also means that human beings have flown out, so under this definition, human beings don't have to wait until the end of development, and now they can completely do it: "Humans fly out of their home planet."

The parent star refers to the solar system (Milky Way). Humans mean that as long as a person leaves, flying out means leaving the earth by one centimeter. I am answering "Is it possible for humans to fly out of the solar system? There is a detailed discussion in, so I won't go into details here, but I'm sure I can tell you the answer. Humans can definitely fly out of the solar system and the Milky Way, whether it is 10,000 meters or a light year, it will be realized with the development of mankind.

The home star refers to the whole universe where human beings live. Humans mean that as long as a person leaves, flying out means leaving the earth by one centimeter. Since ancient times, it has been called the universe, and the four sides have been called the universe. Therefore, human beings must leave the universe to fly out of their home planet. Then my answer is: it is impossible for human beings to fly out of their home planet at the end of development. Although many scientific hypotheses exist in parallel universes, they are hypotheses after all.

The home star refers to the earth, and human beings mean that as long as a person leaves, he must fly out of the gravitational influence of the earth. This situation is actually equivalent to the third situation, because according to the law of universal gravitation, the gravity of the earth will have an impact on the whole universe, so the answer is the same as above.

The parent star refers to the earth (solar system, galaxy), and human beings refer to the departure of all human beings. In this case, it is only possible that the earth (solar system, galaxy) is destroyed or unfit for survival. According to the current scientific understanding of mankind, the solar system will be destroyed for at least 5 billion years. By then, human beings will be able to emigrate or build space cities, that is, fly out of the earth (solar system, galaxy).

To sum up, we can draw the following conclusions: human beings (individuals or all) can definitely leave the earth (solar system and galaxy) for a certain distance, but they can't leave their own gravitational influence and the whole universe.

It is not surprising that human beings have not discovered alien civilization for such a long time. The space we can observe is really narrow. Although we often see in the news that we have found planets or star systems dozens or hundreds of light-years away from us, everything is just a simulation result or a guess of the actual situation there. We are not sure whether there is life on it.

How big is the universe? The diameter of the universe is about 92-93 billion light years, or even more!

The diameter of our Milky Way galaxy is 654.38+ million light years. The solar system is on one of its spiral arms, and the sun gives out that faint light with all its strength. So it took us only a few decades to discover alien civilization, because the universe is really too big. Who knows where aliens are hiding? Besides, humans can't fly out of the solar system yet. Are aliens superior to us? I don't think so. Even if they are more advanced than us, well, they can fly out of their own galaxy. So what?

Scientists estimate that there are at least 2 trillion galaxies in the universe. Of course, this is speculative data, because the number of galaxies we can observe at present is about 1000 billion. The galaxy mentioned here is not our solar system, but a galaxy at the same level as the Milky Way.

Our solar system is slightly larger, and the Milky Way contains 250 billion sun-like stars. Is there really no other "earth" in so many small galaxies similar to the solar system? If there is, it means life is all over the universe!

Will humans not be able to fly out of their own solar system or galaxy? In my opinion, it is not difficult for humans to fly out of the solar system, but it will take a long time to fly out of the Milky Way. To improve the level of human science and technology, we should not only build a spaceship that flies faster, but also learn how to use the laws of the universe.

In my opinion, only those civilizations that know how to apply the laws of the universe can be called civilizations, otherwise, civilizations will always be in their own land of Xiaotian and will never get out!

What is the possibility that human beings will not fly out of their home planet when they reach the end?

According to the normal development, the earth civilization will definitely walk out of the solar system in the future 100-300 years. Even if you can't cross the Milky Way, it's a high probability event to go to the Trinary star system or Barnard system at the south gate of Centauri, which is closest to the sun!

Proxima centauri has a livable planet, so this destination is very attractive to terrestrial globe.

Of course, the development of earth civilization has not been smooth sailing. There have been many mass extinctions in human history, such as the Black Death in the Middle Ages, the Crusades, the First and Second World Wars ... Of course, we can't say that natural and man-made disasters are useless. Of course, from some angles, they may be the only way in the history of civilization development, and also promote the development of science and technology to a certain extent. If there is a war in the future, it will be more and more inclined to Conan the destroyer, because the weapons are more and more advanced, and we can only pray that this will not happen.

In addition, the threat from the sky-asteroids can not be underestimated. For modern civilization, although the threat from asteroids can alleviate some threats to a certain extent, it cannot be completely lifted. Therefore, for the future trend of science and technology, space technology should give priority to the development, because the events on the earth are dominant, but the threat from the universe can only be passively accepted. Only when the threat comes, we have done a good job in coping with it.

We can't effectively deal with the threat from the universe.

After solving these problems, human society and science and technology will tend to be unified. After all, we are all in the same boat, so we can just squeeze through. Only by concentrating on colonizing interstellar space is the future development path, and it is useless to stay on the earth forever.

At present, the most advanced space engine is ion or Hall electric propulsion, but it is still difficult to step out of the solar system, because even if it is accelerated to 300KM/S (0. 1% speed of light), it will still take 4220 years to reach proxima centauri, which is unacceptable.

Another technology that has not yet been realized is the nuclear fusion engine. Theoretically, it can accelerate to the speed of light of 1%- 10%, so it may reach proxima centauri in 40- 100 years in the future. Although this time is long, it is still acceptable for the current technology.

In the near future, this warp-driven aircraft is also expected. Of course, this technology doesn't need to record time in years, maybe it can move back and forth in a few days or a week or two.

Of course, this is a speculation based on the smooth progress of our earth civilization. Compared with 100 years ago, our scientific and technological development does have the feeling of rapid progress, but it has not reached the level of qualitative change in fuel utilization and technological innovation. At present, chemical fuel is still the main fuel, and it is still a function and reaction in propulsion technology. This has been trapped in the speed of light by relativity, and the universe is tens of thousands of light years away. If we were still on earth, maybe.

The development of mankind is endless, and it cannot be said that it has come to an end prematurely. Isn't it a good start to go to the moon now? With the continuous development of scientific and technological progress, one day mankind will fly out of earth-moon system and the solar system. It's only a matter of time. Of course, the earth is our home, no matter how ambitious we are, we can't leave the only warm home.

To answer this question, we must first make two points clear. First, what is the concept of human development in the end? Does it mean the demise of mankind? Or is society and technology stagnant? First of all, the development of human society and science and technology will not stagnate unless the population of human beings is reduced on a large scale, which is not enough to support the development of scientific and technological civilization. This situation will not happen at present. The second one is about the possibility of human extinction. Although we can't say that human beings have no possibility of extinction, we already know how to avoid extinction and how to control some imminent dangers. At present, there is basically no possibility of a large-scale war in the world. As long as we can control some genetic weapons and energy weapons and some high-tech dangerous goods, there is basically no possibility of extinction for mankind. The development of astronomy and aerospace has also enabled mankind to avoid some dangers from outer space. Therefore, at least in the next few hundred years, human development and progress should be in a state of peace and stability.

The second question is the "home star" mentioned by the subject. Does this "home star" refer to the earth? If it refers to the earth, then in fact, humans have landed on the moon, and space stations outside the earth have always existed, so humans can leave the earth long ago, but the number is very small. In the foreseeable decades, humans can also land on Mars, and in the next few hundred years, humans will be able to land on other planets and even transform the solar system, making Venus and Mars habitable.

So if our home planet refers to the sun, we will travel to the outer solar system for interstellar travel. It is not impossible to emigrate or travel outside the solar system. It is estimated that human beings can do it in 500 years. Moreover, in the future, if the earth comes from human beings in the solar system, and the number is particularly large, we must consider moving outside the galaxy. Now we humans have mastered the space technology of landing on the moon and Mars. After hundreds of years of development, we humans must also consider.

The parent star mentioned in the question should not be the earth but the sun (solar system), because humans have long left the earth and landed on the moon! The end of human development should not mean the extinction of mankind, but that mankind will never leave the solar system (forgive my guess, the topic itself is not very rigorous)! Then let's talk about the possibility of human leaving the solar system!

The optimistic and realistic view is that man will leave the solar system one day! No one can be 100% sure, just a distant expectation! But leaving the solar system will not be in the near future, at least it will take hundreds or even hundreds of years of development! Need another qualitative change and promotion of human science and technology!

The solar system has a wide range, at least extending to 1 light-year. 1 light-year distance doesn't sound far, but you should know that Voyager 2 hasn't flown out of the solar system for more than 40 years, and it will take tens of thousands of years to really leave the solar system!

This also shows how vast our universe is!

It can be predicted that if human beings want to fly out of the solar system, human civilization needs to reach the secondary civilization of the universe (the classification of cosmic civilization in Calda and Western Europe is currently only 0.7), that is, almost all the energy in the solar system, including the sun itself.

But in any case, flying out of the solar system is very difficult. At the same time, even if it flies out of the solar system, it will be more difficult to reach the next star system, because there is still a wider cosmic distance waiting for human beings. To some extent, this also explains why human beings have not discovered alien civilization so far, because this is not only a matter of science and technology, but the earth is just a dust in the vast starry sky of the universe (in fact, it is not even dust). How easy is it for aliens to find us?

Humans can definitely fly out of the solar system, which is a firm view of space-time communication. So the question raised by this topic: How likely is it that human beings will not fly out of their home planet in the end? I don't think it's possible. This possibility should not exist.

Because human development has now reached the era of flying, human footprints have landed on the moon, and human unmanned detectors have visited all the planets in the solar system. If the home planet mentioned in the title was the earth, humans would have flown out long ago.

But if the parent star mentioned in the title refers to our star sun, it needs further efforts. As far as I know, at least four unmanned probes have completed the exploration mission in the solar system and flew to the edge of the solar system. They are Voyager 1, Voyager 2, Pioneer 10, Pioneer 1 1.

These aircrafts have already flown over Pluto and entered further interstellar space.

It turns out that Pluto is the farthest planet in the solar system and the boundary of the solar system, so human drones have already flown out of the solar system. But more people think that Attl cloud is the boundary of the solar system. It is about 100 astronomical unit from the sun, that is,1500 million kilometers. It is covered with some remnants of nebulae in the early days of the formation of the solar system, and there are many inactive comet ice blocks. Voyager 1 has already flown this distance. The confirmed evidence now is that Voyager 1 has flown more than 23 billion kilometers and passed through this area. Then it can also be said that it flew out of the solar system.

Because these planes have already exceeded the design life, the power has been used up and they can no longer be contacted. They became lonely heroes and flew into the depths of space alone.

However, the scientific community has never had a standard definition of the solar boundary. Some scientists think that the influence range of solar gravity should be defined, so that the radius of the solar system is at least 1 light-year. According to the current speed of human spacecraft, only a dozen kilometers per second, it takes tens of thousands of years to fly out of the solar system.

At present, human beings are trying to solve the bottleneck of space flight speed. Centennial starship plan, breakthrough meteor plan and warp drive plan are all under in-depth study. Plans to transform Mars have also begun. Therefore, human space development has entered a new era.

Up to now, the history of civilization is only a few thousand years, while the progress of modern science is only a few hundred years. Especially in the modern century, scientific progress is changing with each passing day, and the speed of development is unimaginable.

From the farming age, to the industrial age, to the electrical age, and then to the information age, every progress has greatly improved the ability of human beings to fly into space, and the interval between the upgrading of human civilization is getting shorter and shorter. According to this development speed, space-time communication thinks that human beings can realize manned exploration outside the solar system within a hundred years, and let human beings finally fly out of their home planet, right?

I also believe that humans can colonize the outer solar system in advance within hundreds of years. If it can take thousands of years, human civilization can be upgraded to the level of secondary civilization in the universe, and it can achieve the ability to completely resist major disasters and natural disasters. When the earth becomes uninhabitable, it has the ability to organize human beings to escape from the distant exogalaxy where the earth immigrated.

Space-time communication believes that the most important thing now is human self-discipline behavior. Only by uniting for peaceful development, eliminating the threat of nuclear war and reducing the damage to the natural ecology can we avoid suicide and self-destruction.

Only in this way can we develop science and technology, improve the level of civilization and realize the upgrading of mankind and the dream of soaring in space.

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When human beings reach the edge of life, they can't fly out of their own planet, even if the progress of human civilization includes the development of science and technology. This is also an irresistible arrangement of God, which doomed the extinction of mankind on this planet. The possibility of humans escaping from their home planet hovers at one in ten million.

To answer the main question, first of all, let's take a look at what Home Star refers to. Obviously, the parent star referred to here should not be the earth, but the solar system or the Milky Way. Then, taking the Milky Way as an example, we think it is very big, but for the whole vast universe, it is very small and insignificant.

Let's take a look at when human development has reached its end. Since the birth of mankind, it has been constantly developing and evolving, reaching the end, that is, the highest realm. It is difficult for us to imagine what the highest level is. Can humans fly out of the solar system or the Milky Way? Judging from the current human civilization, it may be a bit difficult, but it may be hundreds, thousands or even tens of thousands of years later. As the most intelligent and advanced creature, human beings have infinite possibilities in their brains. What kind of high technology will be developed in 10 million years is impossible, not only flying out of the Milky Way, but also some galaxies outside the river. So be optimistic about the future and have confidence in yourself.

How big is the vast universe? We can't imagine. As a tiny part of the solar system, Voyager 2 has not flown out for more than 40 years, which shows the great difficulty, not to mention the Milky Way and even the whole universe. This has not only undermined our confidence, but I believe that with the continuous development of civilization and the further progress of science and technology, we will be able to fly out of the solar system and even the Milky Way after many years, so we don't need to be too pessimistic.

What's more, the subject said that human development will come to an end, and when will it come to an end? No one can say how advanced mankind will be and how advanced science and technology will be. Will humans not be able to fly out of their home planet by then? That's not necessarily true. #s#

Do you think humans can fly out of their home planet? Welcome to comment!