Hawking has repeatedly called on mankind to leave the earth as soon as possible? Did he find any secrets?

Human science and technology can achieve leaps and bounds again and again in just a few hundred years, without the efforts of great scientists, such as Newton and Einstein, who we are familiar with. Almost every era will produce several great scientists. In modern times, there are naturally such great scientists, such as Hawking whom we are familiar with.

Speaking of Hawking, I believe many people know him, and maybe many people know that Hawking was published from him, and this is a very famous popular science book of Hawking in A Brief History of Time, which is widely circulated all over the world. Hawking has made great contributions to the popularization of science, especially to make people interested in space exploration.

As we all know, scientific research is actually a very boring thing. Those abstruse scientific theories and abstruse scientific language often make many people lose interest in science, but Hawking is humorous. Talking about science in popular language, especially the science of the universe, has made many people no longer feel profound about the science of the universe.

This is not easy, because it is often easy to describe scientific things in abstruse and complicated language, but it is not easy to make the public understand and understand in ordinary language. Hawking did it. So he is called "the king of the universe".

In fact, Hawking can be called a great scientist in modern times, not because he published A Brief History of Time, but because he made great contributions to the research of space exploration. In particular, many scientific achievements have been made in the exploration of unified quantum mechanics and relativity, and Hawking's radiation theory has also made people know more about black holes.

Many people know Hawking, and another important reason is that Hawking has made some predictions many times. Hawking's predictions are basically about the future of mankind. In Hawking's view, human beings should leave the earth as soon as possible, otherwise it will be very dangerous. Why did Hawking repeatedly urge mankind to leave the earth as soon as possible? Did he find any secrets?

Some people may think Hawking is too pessimistic. The earth is the home of human beings for millions of years, which should allow human beings to survive for a long time. Why should we leave the earth? In the eyes of many people, what really threatens the earth and human ecology is the expansion of the life of the sun to the red giant after billions of years.

At that time, due to the helium flash of the sun, the rapidly expanding volume will devour the earth. Only at this time does man really need to leave the earth. Before the sun expanded, human beings could live on the earth without any worries. Is that really the case?

In fact, Hawking, as a famous cosmologist, knows much more about the dangers to the universe than we do. In the universe, the expansion of the red giant by the sun can be ignored, because it is too far away for human beings. Whether mankind can last for billions of years is still unknown, so don't think so far.

Hawking said that human beings should leave the earth as soon as possible, and this as soon as possible means that within hundreds of years, hundreds of years are a very short time for the universe and a civilization, and it will pass in a blink of an eye. Why does Hawking think that there will be a great crisis in mankind within a few hundred years? In fact, this problem should be explained from several aspects.

The first is the risk of asteroid impact. I believe many astronomy enthusiasts know that comet Shoemaker-Levi 9 hit Jupiter in 1994. That impact made scientists really witness the impact of a huge asteroid. If such a comet hits the earth, the earth will fall apart and human civilization will end.

There are so many asteroids in the solar system that we cannot count them. The impact of asteroids on the solar system is also frequent. Look at many large craters on Mars and countless craters on the moon around you. The reason why the earth is lucky enough to avoid the impact of large asteroids again and again is mainly because of the protection of giant Jupiter in front.

But luck will not be with the earth forever. Maybe one day a huge asteroid will hit the earth head-on. If we don't have the ability to intercept asteroids or leave the earth at that time, the fate of waiting for human beings will be the same as that of dinosaurs 65 million years ago.

The second is that the deterioration of the earth's ecology is far beyond our imagination. Hawking is so anxious to warn mankind to leave the earth as soon as possible because he has seen the deterioration of the earth's ecology faster and faster. Maybe we now feel that the global temperature is rising and getting hotter.

However, when this global warming trend continues, once it exceeds a certain critical point, the earth's ecology will be out of control. By then, the global ice and snow will melt, the sea level will rise by about 60 meters, and the frozen soil that has been frozen for tens of millions of years will also melt. The recovery of various bacteria and viruses in different periods will bring great disasters to the earth and mankind.

According to the current rate of deterioration of the earth's ecology, these disasters may occur within hundreds of years. At that time, the only way for mankind to continue was to leave the earth and choose to live on other planets.

Third, the universe is the future of mankind. Hawking, as the "fifth universe", naturally knows that the rapid development of human science and technology will face a serious problem of resource depletion in the future, and only space resources can solve this problem. Moreover, there are countless planets suitable for human survival in the universe. Only by entering the universe can the development of human civilization usher in a new era and let mankind go out.

If human beings shrink in the earth and in the small solar system, once there is a catastrophe in the future, such as the invasion of alien civilization, then human beings may be terminated. But if human footsteps spread all over the galaxy, human civilization will not end because of the end of human in the solar system, and human civilization will last forever.

It can be seen that Hawking's repeated urging of mankind to leave the earth as soon as possible is not an unreasonable blind prediction, but a well-founded warning. Hawking's continuous popularization of knowledge about the universe to mankind is also aimed at making all mankind interested in the exploration and research of the universe, thus accelerating the pace of human space exploration and research, enabling mankind to realize the leap of science and technology faster, and thus entering the interstellar era.