Source: Xinhuanet The sun, the "pillars" of the solar system, exudes the light and heat that life depends on. Have you ever thought that if there is no sun, where is the destination of the earth? The sci-fi writer Liu Cixin may have thought about this problem. He wrote in the science fiction novel "The Wandering Earth" that when the sun's life comes to an end, the only way for human beings to live is to alienate the outer space into the interstellar space - the whole earth is "smashed out" of the solar system. Heading towards the Centaur. During the Spring Festival, the movie of the same name adapted from this science fiction novel was put on the big screen. The label of “domestic hard science fiction†made people pay attention to it, and a series of questions came one after another: what kind of star can become the mother of the earth? Can a star? A neighboring star be the second sun? Where the earth is settled, two factors are key "Stars are a luminous plasma ball that is converge by gravity. Its main function is to provide a stable energy source for life. Therefore, in theory, the earth can choose any young star to replace the sun to continue life." Yan Lijun, researcher of the National Astronomical Observatory of the Chinese Academy of Sciences In an interview with the Science and Technology Daily reporter, he said. The "wandering" earth should "take root" in the orbit far from the star? Li Lijun pointed out that this involves the problem of livable belt. A livable zone refers to a region around a star that has a greater chance of living or living environment. How to define this range? “Liquid water is generally considered to be an indispensable element of life, so areas around which water can exist in liquid form are often considered to be habitable.†Therefore, when the mass of the star is small, When the light emitted is weak, the livable belt will be closer to the star, and vice versa. There are many types of computational models for livable belts. The Earth must be in the Earth's livable zone, and Mars is in the 'edge zone' in some models. In recent years, liquid water and underground liquid ice have been discovered on Mars. It proves that Mars is indeed in a livable zone." Li Lijun pointed out. If the Earth can successfully settle in the new livable zone, it will satisfy the most basic conditions for human survival. But in the pursuit of quality of life, there is still a problem that has to be considered. "The frequency of stellar energy outbursts will have an important impact on human daily life." Yan Lijun said that the solar eruption will release a large number of charged high-energy particles, which can produce spectacular astronomical phenomena such as aurora, but also endanger radio communication and navigation. , ground power systems, etc. In 2006, the outbreak of solar flares caused serious interference or even large-scale disruption of electronic information systems such as short-wave communications and broadcasting in China. The strong solar storm in 1989 also caused the Quebec region of Canada to black out for 9 hours on a cold winter night. The space environment is worse than the neighbors. In the view of the Philippine Army, the reason why "Wandering Earth" chose neighboring stars as the target of interstellar immigration is the most important factor. The neighboring star belongs to Centaurus, the closest star to the solar system, which is only about 4 billion kilometers apart. Yan Lijun pointed out that the neighboring star is only one-seventh of the sun's mass, and its radiated energy is much weaker than the sun. It is classified as a red dwarf star, so the livable zone of life will be relatively close to the neighboring star; on the other hand, The energy burst of the neighboring star is also much more intense than the sun. "For the 'Wandering Earth', the neighboring star is clearly not the best second sun, but it is the closest star to the solar system, and humans have no better choice." In fact, astronomers have been detecting around the neighboring stars. Go to a planet in a livable zone - next to the star b. Yan Lijun told reporters that the quality of the neighboring star b is about 1.3 times that of the earth, and the distance from the neighboring star is only about 7 million kilometers, and the distance between the innermost star of the solar system and the sun is eight times. "The outbreak of the neighboring star is particularly frequent, resulting in a very bad space environment next to the neighboring star b." Yan Lijun further pointed out that the neighboring star b is also somewhat different in behavior from the earth, and the tide locking effect is one of them. The existing detection data shows that the neighboring star b has one star that is always opposite to its star, and the other side always opposes the neighboring star, just as the moon always faces the earth with the same face. "Although it is livable, but neighboring star b may not be liveable." In the opinion of the Philip, the desire of human beings to find the "friend" of extraterrestrial life may be innate, the latest observations show that neighboring star b or even The possibility of life in the space around the neighboring star is very low. The researchers found that a flare flare in the adjacent star in March 2017 was 10 times stronger than the strongest solar flare, and the radiation received by the neighboring star b was about 4000 times higher than that of the Earth, which was extremely unfavorable to life. Therefore, the researchers believe that the neighboring star b may have been subjected to strong flare attacks many times. Even if the surface has had liquid water and atmosphere, it has been destroyed and the environment is not suitable for life. Editor in charge: Gu Wen This article is posted on this website for the purpose of transmitting more information and does not imply endorsement of its views or confirmation of its description. Article source address: http:// Pet Raincoat And Winderbreaker Pet Raincoat And Winderbreaker,Pet Raincoat,Pet Winderbreaker,Lightweight Dog Raincoat Dongguan Mace Industry Co., Ltd , https://www.maceindustrypetproduct.com