Ever since human beings stepped out of the earth and began to explore the universe with the help of science and technology, the dream of emigrating to outer planets has appeared. Perhaps for ordinary people, whether they can immigrate to outer planets is not important, but in the minds of scientists, the future of mankind lies in the universe. Mankind wants to continue to develop, become a stronger civilization, and move toward the universe. Colonization of outer planets is inevitable. One way to go.
I believe many friends know that since human beings entered the industrial age, although the rapid development of science and technology has brought earth-shaking changes to people’s lives and made a qualitative leap in human civilization, the rapid development of industry is also constantly destroying the earth. Ecological environment. More and more scientists are worried about the future ecology of the earth. Hawking has issued warnings to mankind many times during his lifetime: the ecological environment of the earth may completely collapse within hundreds of years. At that time, the earth will no longer be suitable for human survival. .
If the earth is no longer suitable for human existence, what shall we do? There is only one way to emigrate to outer planets. For nearly half a century, the main goal of scientists actively exploring Mars is to transform it into a second habitable planet, preparing a way out for humans in the future. But we all understand that Mars is actually not a planet that is naturally suitable for human survival.
In fact, in the entire solar system, there is no second natural habitable planet except Earth. If we want to live on other planets, we can only transform it through various environments, but it is not easy to transform the environment of a planet to make it a habitable planet like the earth.
If we can modify the environment of Venus and Mars and turn them into a second earth and a third earth, then the earth will naturally be transformed. If this is the case, we will not be afraid that one day the earth will completely collapse and become unsuitable for human survival. Since we can’t make all kinds of perfect transformations to the earth’s ecological environment, it is even more difficult to transform Mars, Venus.
Even if we have this kind of environmental modification technology in the future, a modified habitable planet still cannot be compared with a natural habitable planet. Therefore, the transformation of Mars is only a preplan prepared by scientists, and the real migration of alien planets still needs to be outside the vast solar system.
The galaxy in which the solar system is located is the Milky Way. This is a large galaxy with a diameter of 100,000 light-years. It has hundreds of billions of stars. There may be as many as trillions of terrestrial planets. Even if there is a small probability of habitable planets, then I believe there will not be too few ecological planets in the Milky Way that can satisfy human survival.
Of course, considering the factor of distance, it is impossible for us to choose habitable planets that are very far away from the earth for the first batch of alien immigrants to be realized in the future. For example, the exoplanet most similar to the Earth discovered by scientists now is Kepler 452b. This planet looks too much like the Earth in all aspects. Scientists kindly call it “the cousin of the Earth.”
But such a “cousin of the earth” is 4,000 light-years away from us. Even if the spacecraft flies at the speed of light, we still need to sail for about 4,000 years to reach it. This is obviously unrealistic. Even if we achieve the speed of light one day in the future, it is impossible to spend 4000 years to emigrate to this planet, although it may be the most suitable planet for human survival.
The reason for this is that the environment of the universe is very complicated. In the long interstellar voyage, there are too many unknowns that may threaten the human beings on the interstellar journey. The number of humans on the immigrant spacecraft is certainly not a small number, so we have to consider more factors, and time is a very important factor. We may spend billions of years, hundreds of years on an interstellar voyage, but thousands of years will not work.
Therefore, before humans have achieved superluminal flight technology, the range of exoplanets that can be selected is limited, so where is the closest planet to the earth that is suitable for human habitation? At this time, scientists thought of a place, that is, the neighboring galaxy, which is only 4 light-years away from the earth.
I believe that many friends are no strangers to the Contrast Galaxy. In the science fiction novel “Three-Body”, the alien civilization that invaded the earth came from here. And last year, in a very popular science fiction movie “Wandering Earth” in our country, the final wandering target chosen by the earth was also the leading galaxy. Therefore, many people know the Biling galaxy from the sci-fi works here, and they also think that there may be an alien civilization here.
So is there an extraterrestrial civilization in the real Proxima Centauri? Is there a habitable planet suitable for human existence? In fact, the scientific community also has great disagreements on this issue. Some scientists believe that the Biling galaxy is a three-star system with three stars. Such a galaxy does not have a single-star system like the solar system, and it is unlikely that there will be an intelligent civilization, let alone a habitable planet suitable for human survival.
Some scientists believe that the Biling galaxy has discovered many mysterious phenomena through astronomical telescope observations. It is possible that this is really an extraordinary galaxy, whether it is an alien civilization or a habitable planet suitable for human survival, it is possible to exist.
No matter what the situation in the Biling galaxy is, when humans are truly capable of going there, I believe that scientists will not let go of detecting this galaxy. Moreover, the Biling galaxy is only about 4 light-years away from us. As long as we can fly at sub-light speeds, we can go here for detection. At that time, we will be able to understand what is going on in the Biling galaxy.
As long as there are no powerful alien civilizations in the Biling galaxy, and there are habitable planets suitable for human survival, then the first alien immigrant planet of mankind will fall here. And there is no need to fly at the speed of light to get here, flying faster than the speed of light, we only need our flying speed to achieve a qualitative increase again, and perhaps we are able to emigrate to the leading stars.
Seeing this, many people will ask: How long will it take to achieve such a goal, and when will we be able to travel to the Biling Galaxy? As we said above, as long as the initial sub-light speed flight is achieved, it will be able to reach the star. To achieve such a speed, a major breakthrough in energy is needed. This energy may be the controllable nuclear fusion that scientists have been studying now.
As long as we realize the controllable nuclear fusion technology, we can realize the nuclear fusion engine. At that time, the speed of the spacecraft may initially achieve sub-light speed. The realization of controllable nuclear fusion, ideally, is expected to be successful in 50 years, and nuclear fusion is expected to achieve subluminal flight within 100 years. And a hundred years is very short for human civilization.
If human genetic technology can achieve major breakthroughs in the next few decades, the average life expectancy of humans can be greatly improved, and perhaps many young people today still hope to see that day. Perhaps in our lifetime, there is also hope to visit the Biling Galaxy.