What will happen to mankind after the extinction of the earth?

How can humans escape from the destruction of the earth?

According to the US space website, although the "end of the world" is unlikely to come today, human extinction may happen at any time. The earth may suddenly be hit by a huge and unconventional asteroid, or suffer slow and vicious changes and unprecedented deadly virus attacks. There is no doubt that the end of the world is not a pre-supernatural event, or as predicted by some prophets, the day when the earth and mankind will be destroyed will one day happen. But if the end of the world comes and the earth becomes uninhabitable, how can human beings survive then?

In a short time, people's desire for survival will become very pale and powerless on the day of the apocalypse. Although human beings will have the idea of desperately fleeing the earth at the last moment of their existence, there is no mature escape strategy at present. How to preserve human civilization permanently is related to the advanced space flight capability of mankind in the future. Last year, Stephen Hawking put forward the view that the long-term survival strategy of mankind is not to pay attention to the situation of celestial bodies outside the earth, but to plan how to establish a living base in other celestial bodies in space. The international space station is unrealistic. At present, human beings have no strategic plan to live in space for several months without the earth's environment, and there is no supply of food and water in space. Salute Space Station, Space Laboratory, Mir Space Station and International Space Station have been established, but they are very fragile in terms of structure and human adaptability. If the height of the spacecraft arriving at the space station is not increased, the orbit of the space station will decay, and eventually the space station will enter the earth's atmosphere and burn.

Sending humans to the International Space Station is very expensive and rare. In the past 14 years, about 300 people have arrived at the International Space Station. The "permanent" crew of the International Space Station is only six people, and astronauts usually need to change it every few months. Therefore, the International Space Station cannot be used as a "radioactive dust shelter" for spacecraft. Thomas Heppenheimer, an associate researcher at the American Institute of Aeronautics and Astronautics, said: "In fact, the International Space Station is just a lifeboat with a decreasing height." It is reported that Thomas has written books on space colonization, the space shuttle and other space topics.

In order to ensure the survival rate of human beings leaving the earth, the new spacecraft will focus on technological upgrading and equipment improvement to meet human survival. These technical factors can provide vital earth escape when necessary, but this seems to be an impossible task. "space habitat"

In the past few years, scientists have proposed a series of space habitats as the standard immigration methods for human beings to enter space, instead of using escape pods. These designed spatial habitats are multifunctional, ranging from spherical to annular and cylindrical structures, which can be rotated to form an artificial gravity environment inside. The mirror system of space habitat can reflect sunlight to the inside. The mixed gas in the habitat simulates the earth's atmosphere and has fixed soil layers and waterways, which is suitable for agricultural production and human habitation. Asteroids such as the moon and Mars build "doomsday ark" under the moon.

Of course, it takes a lot of time, money and advanced science and technology to build this huge space-dwelling spacecraft, which are very scarce in the event of a planetary disaster. Scientists put forward the idea that human beings will colonize asteroids such as the moon and Mars in the future, and made a thorough and comprehensive analysis of these ideas. Although this idea will become a reality in the future, it is not an eternal fantasy in science fiction stories, but a free residence in space. This idea is only on the drawing board at present.

Another plan is called being more realistic. It will plan to build a doomsday ark under the moon. This "basement" will hold all the information about restarting human civilization, including methods of smelting metals and cultivating crops. Or store human gene sequences, plant seeds and other organisms in the doomsday ark. Once the end of the earth comes, the doomsday ark will be started by robots. This sounds a bit exaggerated, but it is close to reality. If the end of the world comes tomorrow, then mankind will not be able to get rid of the destruction brought by disaster. Thomas said: "As intelligent beings, we have at least foresight for the future."