The sun is a celestial body we see every day. It hangs high in the sky and brings light and warmth to the earth. As we all know now, the sun is a star, a kind of burning celestial body that exists universally in the universe. The ubiquity of stars has brought some light and warmth to the dark and cold universe.
Where there are stars, there will basically be a star system. Each star system has one or several stars in the center. Within its gravitational range, there will be a varying number of planets orbiting it. The basis for the existence of a star system is the huge star in the center. In the same way, the basis for the existence of our solar system is that there is a sun in the center, whose mass accounts for 99.86% of the total mass of the entire solar system.
The existence of the sun allows the solar system to maintain a stable and balanced state. Only a stable galaxy environment can give birth to life on the earth, and only then can life have enough time to evolve and evolve, and eventually intelligent life human beings will be born. It can be seen that the sun can be called the needle of the solar system and the original mother of life on earth. Without it, there would be no solar system, let alone the birth and continuation of life on earth.
There are eight planets in the solar system. The closest to the sun is Mercury, and the farthest is Neptune. They revolve around the central sun together, and at the same time form a kind of centrifugal force through rotation. This centrifugal force forms a dynamic balance with the sun’s gravitational force. This balance has lasted for 4.6 billion years.
If the solar system disappears suddenly, it is obvious that the huge gravitational force of the sun will disappear, and the celestial balance of the solar system will be broken. What will happen at this time? What will happen to the fate of the earth? First of all, when the sun suddenly disappears, the entire solar system loses its light and heat. According to the distance between the earth and the sun, it takes about 8.33 minutes for sunlight to reach the earth, which is about 500 seconds.
When the last sunlight reaches the earth, there will be no daylight on the earth anymore. The whole 24 hours will be pitch black. That kind of situation is really dark. Except for some stars, there will be nothing in the entire sky. Bright presence. The most visible Venus at night, the Venus, will also lose its brilliance.
Of course, after the sun suddenly disappears, the earth will not immediately fall into the boundless darkness. We still have light for about 500 seconds. After 500 seconds, we will lose the light forever, and we can only use electric lights and other technology products to carry out some lighting. For life on earth, the light and heat of the sun are important sources of life.
If there is no sunlight, then plants will not be able to enter photosynthesis, a large number of plants will continue to die and become extinct, and herbivorous animals that depend on plants for their livelihoods will continue to become extinct, finally affecting carnivorous animals. It can be said that the sudden disappearance of the sun will be a devastating blow to the entire ecological chain of the earth and the biological chain.
More importantly, without the heat of the sun, the earth will fall into a long ice age, and the temperature of the entire earth’s surface will be lower every day. In a few years, the temperature of the earth’s atmosphere may drop to about minus 200 degrees Celsius. This temperature is almost close to absolute zero, and with the sharp drop in atmospheric temperature, the atmosphere will basically cease to exist, because nitrogen and other gases will also liquefy and fall on the surface of the earth.
The entire earth has become a frozen planet, and human beings as intelligent life can only move underground if they want to survive. Although the surface of the earth has become very cold because it has lost the heat of the sun, the inside of the earth itself is a big furnace. As long as we move underground, we can use part of the geothermal energy to keep warm.
Of course, the above is the huge change that will occur to the earth itself after the sun suddenly disappears. Although this change can make most of the living things on the surface of the earth extinct, human beings are intelligent civilizations and have entered the age of science and technology. Relying on the power of science and technology, we can still preserve a part of human fire, and then move it underground to continue the development of civilization.
The disaster that is truly possible to end mankind actually comes from outside the earth. We must understand that after the sun disappears, the order of the entire solar system will completely collapse, and the solar system without the sun will be meaningless. After the sun disappears, the eight planets will soon depart from their current orbits and fly away from the solar system along the cut plane of the revolution orbit.
After 500 seconds, the earth will fly away along the cutting edge, and then wander toward the vast outside of the solar system. This speed will reach 29.78 kilometers per second, much faster than the fastest human Voyager 1 spacecraft. So will this wandering journey of the earth go smoothly? The answer is very dangerous. If, as in “Wandering Earth”, only one planet in the entire solar system leaves the orbit and wanders outside the solar system, then the safety factor will be much greater.
But when the sun disappears, the solar system ceases to exist. At that time, the eight major planets and other asteroids will wander toward the vast outer solar system. The first to fly out of the orbit is Mercury, then Venus, and then the earth. . The farther the planet spans the center of the solar system, the later it will be out of public orbit.
When the planets of the entire solar system are wandering and fleeing, celestial collisions will often occur. This chaotic state can be compared to the early days of the solar system. We must know that in the early days of the solar system, the entire galaxy was not completely stabilized. At that time, there were more than 100 planets in the solar system. However, due to the chaotic environment of the galaxy, these planets kept colliding with each other, and finally only eight were left.
Although the current solar system has only eight planets, there are countless types of asteroids, and more importantly, there are two huge gas giant planets, Jupiter and Saturn. Imagine if the sun suddenly disappeared and the entire solar system fell into chaos, all celestial bodies were flying towards the outside of the solar system. Is it possible for the earth to wander out safely and steadily? It is estimated to be very difficult.
Even if the Earth does not collide with other planets, it may collide with other asteroids, especially the Earth at the edge of the solar system. The number of asteroids is too large to estimate. Therefore, if the earth is wandering freely and there is no way to control its direction, then after the sun suddenly disappears, the ultimate fate of the earth will most likely be annihilation, and even if human beings hide inside the earth, it is difficult to escape.
To solve all of this, we can only rely on strong scientific and technological power. If we have the scientific and technological strength of human beings in “The Wandering Earth”, we can install a large number of engines on the earth, which can artificially change the wandering orbit of the earth. In that case, the earth The probability of being hit by other planets will drop drastically. It is possible to leave the solar system safely and steadily and move on to other galaxies.
Of course, these are just our assumptions, the sun will not disappear suddenly, and the earth will not become a wandering planet. Even so, the final destiny of the sun will run out of hydrogen fuel after 5 billion, and then trajectory to a red giant star, and finally evolve into a white dwarf star. In this process, the orbit of the earth will be swallowed by the sun. If we do not leave the earth and the solar system at that time, our destiny will also end.
Of course, 5 billion years are still very far away from us. If humans can continue to that time, they may have already become a powerful interstellar civilization. At that time, even if the sun’s life is up, we can leave the solar system calmly. Whether it is taking a spaceship or packing the earth away, it will be nothing for a powerful interstellar civilization.