What will happen if there is no sun?

There are many of us who read science with understanding, but sometimes their curiosity gets so high that they ask questions that seem meaningless, but the science behind them is very important. A curious person should be, among them, a very popular question, “What if the Sun suddenly disappeared?” There are two aspects to this question. ?And the second aspect is what will be the effects of this on all living beings on earth?

If the sun suddenly disappears, even then the Earthlings will not even know about it and its light will continue to reach them. This light will last only for 8 minutes, we know that the light in space is about 3 lakh kilometers. per second and the average distance from the earth to the sun is about one and a half million kilometers, so the light has to travel a distance of 8 minutes to cover this distance. Yes! We see the light of the sun, it leaves the sun 8 minutes earlier, so it can be estimated that the light, which is called the fastest object in the universe, would also reach the earth after some time. Is.

Many people think that if the earth is on its axis due to the attraction of the sun, then as soon as the sun disappears, the earth will also deviate from its orbit and start moving on a straight path, but this is not the case at all. If we consider Einstein’s theory of relativity, one aspect of it is that there is a sheet of space and time in the universe, the more matter there is, the more curvature it will create in this sheet. And small objects (including planets, asteroids, etc.) will orbit around it on a slope. Einstein also stated that if any matter moves on this sheet or suddenly disappears, waves in this sheet, What are called gravitational waves will be created and the speed of propagation of these waves will be equal to the speed of light.

This means that 8 minutes after the disappearance of the sun, we will know about its disappearance, at the same time after 8 minutes, the curve in the sheet of time and space will end and at that time the earth will deviate from its orbit. But it will flow. After the disappearance of the sun, the day will cease to exist in the world and all the planets of the solar system will be plunged into darkness. Along with it, severe cold will also set its camp.

It is quite possible that in a few days there will be no trace of life left on the entire globe. But the Sun will die like other stars. We know that the chemical reaction between hydrogen and helium in the Sun’s core is going on, which produces light and heat, but also some other minerals. are made, including iron. Due to their formation, the mass of the Sun is gradually increasing.

According to scientists, about 5 billion years from today, the size of the Sun will become so large that it will swallow the first 2 planets of the solar system, Mercury and Venus, but the Earth will also merge into the Sun. It will be like a very red giant in the state, that is why it is called “Red Giant” in astronomical terms. After reaching this state, the Sun will not grow anymore but will explode like other stars and only its center, The one that is now slightly smaller than its own mass will remain, as it will be a small and white bright star, hence the name “white dwarf star” or white dwarf.

After the explosion of the sun, the material scattered in space will look exactly like the nebula we see in the sky today, the most famous of which is the Orion Nebula. Many stars will come into being. At the time of the death of the sun and after that, the earth will certainly not exist and there will be no trace of the people living on the earth. Discover a land and move there.