If the sun suddenly disappears, how long can the earth last?
It is the boss of the solar system and the only star in the solar system. Its mass is equivalent to 99.86% of the total mass of the solar system. It is located in the central region of the solar system. Under the strong gravitational pull of the sun, all celestial bodies in the solar system need to orbit the sun, and the same is true for the earth. Therefore, the sun plays an important role on the earth, which makes many people wonder. If the sun disappears suddenly, how long will the earth exist, and will human civilization cease to exist?
It is not difficult to imagine that the disappearance of the sun means that there will be no sunlight on the earth’s surface, and the temperature of the earth will drop rapidly. Fortunately, the earth’s dense atmosphere will prevent the loss of the earth’s temperature to a certain extent. Theoretically, 80% of the heat in the Earth’s core is generated by the decay of isotopes. Therefore, the earth itself can actively provide enough heat. Scientists calculated this under ideal conditions. They believe that, in theory, the heat from the decay of isotopes in the core could keep the Earth alive for tens of billions of years. Coupled with the accompaniment of the moon, under the influence of its tidal force effect, it provides some heat for the normal operation of the earth. Unfortunately, the temperature on the earth’s surface is still extremely cold, and the earth’s seawater will freeze all year round, and the thickness of the ice layer can even be as high as several kilometers. Because there is a lot of liquid water under the ice, there are likely signs of life near submarine volcanoes.
Many people think that the disappearance of the sun will only lead to a gradual increase in the temperature of the earth. In fact, the harm caused by the disappearance of the sun is far less than the harm caused by the decline of the climate. This is because the sun’s greater effect on the earth is not light energy and heat energy. The sun rocks the solar system with its massive mass and “manages” it very steadily. It has to be said that the existence of the solar system is very special, and the number of planets in this star system is relatively large. They all rotate in an orderly manner under the gravitational pull of the sun. They orbit faster than planets that are relatively far from the sun. The earth where humans live is the third planet from the solar system from the inside to the outside, and its revolution speed is 30km/s, which means that humans have been “moving” continuously since their birth. Unfortunately, humans cannot perceive the speed of the earth’s motion in a relatively static state, that is, when the sun disappears.
Because the propagation speed of sunlight is consistent with the speed of gravity, when the sun disappears for 8 minutes and 20 seconds, the earth will be turned upside down The change. At this time, an unprecedented “face change” will appear in the sky in an instant. When the last ray of the sun reaches the earth, people will find that the sky is dimmed instantly, endless darkness will cover all parts of the earth, and the sun will disappear for 11 days. The moon, which has been with the earth for a long time, will also be out of human sightdisappear. 30 minutes after the sun disappears, the earth’s magnetic field will also change significantly. Some humans may be lucky enough to watch the beautiful aurora sky at night. One hour after the sun disappears, the surface temperature will drop rapidly. Surprisingly, the core also generates powerful heat. Unfortunately, *** communication also gradually breaks down. Eight hours after the sun disappeared, maybe human society did not cause a big panic, because the rotation of the earth has made people accustomed to the phenomenon of alternating day and night. Unfortunately, people wake up from their sleep to find that their world is facing darkness and a truly global crisis.
One day after the sun disappeared, human beings realized that the earth has nothing to fear from the sun. Emergency meetings will be held around the world to discuss countermeasures. Experts will also conduct scientific research on the disappearance of the sun. A week after the sun disappears, the photosynthesis of plants will be completely abolished, and they will no longer release oxygen. Due to factors such as cold climate and severe lack of sunlight, 90% of the plants on the earth will dry up, and the energy of power plants will also be exhausted. Human beings will face a series of problems such as severe power supply shortage, and the temperature on the earth’s surface will gradually drop to around -10°C. When humans are looking for a new home under the protection of warm clothes, some humans will dive into the deep sea under the protection of submarine submarines, while others will gather near volcanic hot springs. One month after the sun disappears, along with the death of plants, herbivores will also become extinct. On Earth, perhaps even carnivores can be seen on the Youyou Resource Network.
Half a year after the sun disappears, the earth’s surface temperature will be about -50°C, and the earth will gradually be completely surrounded by ice. At this time, some hardy plants may still be seen on the earth. Unfortunately, 99% of the flora and fauna have disappeared. One year after the sun disappears, the Earth’s surface temperature is about -100°C. At this time, under the influence of submarine volcanic eruptions, frozen oceans exist in relatively warm areas deep under the sea. For example, bacteria. In addition, due to submarine volcanic activities, unknown new organisms may be born on the earth. If the sun disappears for 10 years, the surface temperature of the earth will be -200°C. At this time, apart from bacteria that can resist the harsh low temperature climate, there will probably not be any form of life on the earth.
100 years after the sun disappears, the earth will face a situation where the atmosphere shrinks sharply and the ozone layer disappears. The high-risk radiation in the universe will reach the surface of the earth without any problems. When severe cold weather pushes the earth into an ice age, it will gradually turn the earth into the frozen planet people have heard of. At this time, the earth will also become a veritable “vagrant”, wandering aimlessly in the vast universe. Of course, this phenomenon only exists under ideal conditions. Scientists say that after the sun disappears, the situation in the solar system will be chaotic, because Mercury, which is the closest to the sun, will lose the sun’s gravity first, along theThe tangential direction is thrown into the embrace of the universe, and Venus will follow it and fly to the universe, because the revolution speed of Mercury and Venus is faster than that of the earth.
So the earth is very likely to hit two planets due to slow start, and the earth will also be extinct because of this accident. Moreover, during the long wandering process of the earth in the universe, it is likely to collide with other celestial bodies or be swallowed by black holes in the universe. It seems that after the disappearance of the sun, the tragic fate of the earth is also doomed. It seems that human civilization is as insignificant as a tiny speck of dust, because, traces of their existence will disappear under the Earth’s ice caps, and life on Earth will cease to exist. When the Earth escapes the gravitational pull of the sun, it plunges headlong into the dark universe. Perhaps, the earth is lucky enough to wander among the stars and embark on a new journey. At this time, mankind has come to the end of an era.