If the sun goes out suddenly, how long will it take on Earth to know?

If the sun goes out suddenly, I think we'll know soon. It should take no more than 12 hours at the latest. Because there are dark days and daylight reasons. It also depends on how to extinguish it. If it goes out, the earth will have no temperature.

If the sun goes out, the earth will know immediately, because the light emitted by the sun will be bright on the earth, and if there is no sun, it will immediately become dark, and the earth will definitely know in seconds.

If the sun goes out suddenly, we on Earth will get the news within ten minutes. After all, yellow is very fast, and we are not very far from the sun.

It can be known very quickly, because the sun is shining on the earth all the time. Once extinguished, the temperature will drop quickly. It's dark everywhere, so it's terrifying.

It has to be said that light travels very fast, so if the sun suddenly goes out, then the earth will immediately turn into darkness, and the end of the world is coming.

As the core of the entire solar system, the sun will not exist without the sun, and the earth will not have the current ecological environment. If the sun disappears one day, it will be a devastating blow to mankind, it will no longer shine and no longer heat, then humans will not feel the sun's rays for a little more than 8 minutes. <>

The sun itself is in its prime, so let's take a reassuring pill first, don't worry at all, according to the size of the sun itself, it has a lifespan of 9 billion to 11 billion years, so the sun has at least 5 billion years to go. And the earth has only been 4.6 billion years since it appeared, which means that the sun will not go out if you start over again from the appearance of the earth to the present, so human beings will not see the sun go out in their lifetime. Unless it is interfered by unpredictable and dangerous forces, this will not happen in billions of years for us as far as we are for the sun.

But let's make an assumption, let's say that the sun is really going out, then it will take about 8 minutes and 20 seconds for the sun's light to reach the earth, that is, after such a long time, we may not feel the sun. But you have to know what it means that the sun does not shine, which means that the nuclear reaction of the sun itself will disappear, the sun will no longer be an active star, it will become a dead star, then it will not have its own strong gravitational attraction, and all the stars in the solar system may leave their orbits and fly quickly to the edge of the solar systemAt that time, it is possible for the Earth to collide with other planets, and the moons of other planets, and this can happen. <>

That's right, if according to human **, it is possible to extinguish it after 51 years, then this is not a threat at all. Because of the modern technology of human beings, from hundreds of years ago to the present, they have been able to land on the moon, and even prepare to land on Mars, so who knows how far our technology will develop in tens of millions of years? What's more, there are very few generations of creatures on the earth that can survive for more than 500 million years, and although human beings have their own civilization and wisdom, they are not necessarily exceptions.

It takes 10,000 years for humans to feel the sun after it goes out, although it only takes eight minutes for the sun's rays to reach the earth; But before that, the last wave of photons after the sun goes out will get lost in the radiation and convection regions for about 10,000 years before reaching the Earth. Therefore, the extinguishing of the sun can only be fully perceived by humans until the last batch of photons has reached the earth.

If the sun goes out suddenly, it will take eight minutes for humans to feel it, after all, it takes eight minutes for the sun's rays to reach the earth.

Within a minute, you can feel that when the sun goes out, the earth will instantly darken.

I think that if the sun really goes out, it will take about 10,000 years for humans to perceive it, and it is very difficult for stars to go out, and there is no way for humans to extinguish the sun, and the core of the universe will basically reach its own lifespan before it will naturally face west, so it takes a lot of time.

If the sun goes out, we won't feel any change for a short time, because the earth is protected by an atmosphere, but after about 10 minutes, humans will feel that the sun is gone, and it will come and the temperature will drop.

I think it may take a while, because it is impossible for the sun to disappear in an instant, so it is not right to judge the state of the sun by the light of the moon.