It is more suitable for immigrants than Mars. What's so special about Ceres in the asteroid belt?

To be sure, non-renewable energy such as oil and coal will be exhausted one day, in addition to the deterioration of ecological environment and melting glaciers caused by global warming.

At present, human beings have not enough ability to improve the deteriorating situation, so the earth may become more and more uninhabitable in the next few hundred years. Although the earth has its own repair ability, it often takes tens of millions or even hundreds of millions of years as a repair cycle, which is far behind the speed of human destruction of the earth.

Based on the above situation, the scientific community believes that the urgent task of human civilization is to find a planet suitable for immigrants in the solar system, because the super earth and the second earth discovered at present are located dozens or even hundreds of light-years away. Although they look very suitable for people to carry bags, according to the current space navigation technology, it is tantamount to wishful thinking to live in these worlds outside the solar system.

Considering the survival needs of human beings, the immigrant planet must first be a rocky planet, because the gaseous planet can't stand on the surface, and it has fallen into the core of the planet when it comes into contact with solid matter, and the core is usually as high as tens of thousands of degrees Celsius, screening out half the planets in the solar system.

Because water is the source of everything, 70% of us are water, and no animal can live without water. Whether water can exist is related to the surface temperature of the planet, that is, how much sunlight we can receive.

If it is too close to the sun, it will become like mercury, scorched during the day and extremely cold at night. It is obviously not suitable for producing water in such an extreme temperature difference environment. The distance between the earth and the sun is just right. There will be no liquid water any closer or farther, so the planet we are looking for should be near the earth.

Mars was once the first choice for human immigrants, and the exploration of it never stopped. A large number of data show that the surface of Mars is rich in water resources. Although it is difficult to retain liquid water on the surface of Mars under the huge temperature difference, there may still be water resources deep in its rock layers.

Scientists speculate that in ancient times, Mars may be a planet with a blue ocean like the earth, but in two violent meteorite impacts, Mars gradually became what we see now.

Due to the lack of global magnetic field to deflect the solar wind, the thickness of the Martian atmosphere is only 1% of that of the earth. Without the protection of magnetic field, the current rover can be described as desolate. 4 billion years ago, rivers, lakes and seas all over Mars were already decomposed into oxygen atoms and hydrogen atoms by ultraviolet rays.

Because these two elements are very light, oxygen and hydrogen will float upward without the protection of the atmosphere until they disappear into the vast space. In hundreds of millions of years, the original water resources of Mars gradually decomposed and escaped, and some of them evaporated and disappeared, becoming today's crimson planet.

Due to the lack of atmosphere, the temperature difference between day and night of Mars is still too large compared with that of the Earth, which is not suitable for human survival. It seems that there are no planets suitable for human migration in the solar system, but besides the eight planets, there are also some satellites of planets that can be considered.

Although located in the asteroid belt, it is actually a dwarf planet, accounting for one-third of the mass of the entire asteroid belt. Astronomers believe that Ceres had a chance to become a planet when the solar system was formed 4.6 billion years ago. However, due to the excessive mass of Jupiter adjacent to it, most of the nebula materials were absorbed by Jupiter, and Ceres could only exist as a dwarf planet in the asteroid belt.

Ceres has a rock core, and its mantle layer contains a lot of ice water. As early as 20 14, the European Space Agency discovered the water vapor on Ceres with the Herschel telescope.

Scientists speculate that the ice on the surface of Ceres was rapidly heated by the sun and turned into water vapor. At present, the observation results of Ceres show that there are a lot of water-bearing minerals on its surface, and it is preliminarily speculated that water resources account for about 40% of Ceres' volume.

Although Ceres has a thin atmosphere, it contains a lot of nitrogen. You may think that nitrogen is not as good as oxygen and cannot be used by human beings for breathing, but compared with toxic ammonia and methane on other planets, nitrogen on Ceres is quite harmless.

Ceres is known to have a large amount of water resources, both solid ice and liquid water can be decomposed, and oxygen atoms can be decomposed into oxygen from water.

At present, scientists have been able to create a strong magnetic field in the laboratory, which is about 2 million times that of the earth. If you need to immigrate to Ceres in the future, you only need to wrap an artificial magnetic field around Ceres to stop the erosion of solar wind and cosmic rays. If Ceres' water resources are decomposed into oxygen, Ceres will become suitable for human survival.

It is more urgent to protect the earth where we have lived for generations than to emigrate to other planets. As Bill Gates said: Do your best to protect the earth and make it suitable for future generations to live in.