The earth itself is not a hard rock, and there is lava 40 to 70 kilometers below the earth's crust, which is somewhat similar to the structure of an egg. If you want to drive more than 10000 engines, it will only take a hundred years to push the earth to "walk". The pressure of the engine on the earth will be unbearable to the earth and will break the shell of the "egg". If the engine accelerates slowly and gradually reaches the maximum power, the "wandering" time of the earth will be longer, even thousands of years. During the "wandering" period, it is difficult to predict what will happen to the earth, what will happen to the earth, and what human civilization will experience. If the solar crisis is imminent, how can mankind survive? As the only known planet with life in the Milky Way at present, the Earth is always being asked by the sun. After 56 billion years, the sun is about to usher in the "end" of its life, and this "grilling" will become extremely deadly. The recent movie "Wandering Earth 2" was launched against the background of the impending doom. In the film, human beings try to get a glimmer of life with the help of thousands of giant planetary engines, quantum computers with insight into everything, and towering space elevators. So, in reality, will the sun eventually cause a fatal blow to the earth? Will the earth decay with the sun? Can the planetary engine really push the earth to "wander"? To this end, the reporter of Science and Technology Daily interviewed a number of scientific consultants, experts and scholars from "Wandering Earth 2" to interpret the hard core science of "Wandering Earth" together. If the sun comes to an end, will the earth survive? The sun crisis is beginning to emerge, and human beings are working together to overcome the difficulties... The future picture shown in "Wandering Earth 2" is cruel but stirring. The sun, a huge "fireball" about 150 million kilometers from the earth, is the largest celestial body in the solar system. About 4.6 billion years ago, the sun was about 26000 light-years away from the center of the Milky Way, and was formed by the collapse of the nebula under its own gravity. At present, the sun is in its prime, which is called the main sequence star stage in astronomy. This stage will last about 10 billion years. It brings light and energy to the earth and is an essential factor for the origin of life. However, sunspots, flares and coronal mass ejections also often cause damage to human production and life. However, the sun will eventually grow old. The origin of Wandering Earth 2 is the rapid expansion and aging of the sun. In the Milky Way, more than 90% of stars will eventually evolve into white dwarfs. At the end of their evolution, they will devour the planets in their nearby orbits. As a "common" star, the destination of the sun is also a white dwarf. Does this mean that the planets around the sun, including the earth, are doomed to be swallowed? "If the planet is close to the star, it is likely to be swallowed by the star," Gou Lijun, the scientific consultant of Wandering Earth 2 and researcher of the National Astronomical Observatory of the Chinese Academy of Sciences, told Sci-Tech Daily. However, "being swallowed" is not the only destination of the planet. The sun will finally experience an explosion of planetary nebula and become a white dwarf star. Around the white dwarf, the original planets may also exist. With the improvement of human observation methods, astronomers do