If the sun goes out, the Earth s temperature will reach below zero in a few days?

Human beings always like to speculate about the future, be prepared for danger in times of peace, and put forward many doomsday theories and extinction hypotheses, but when we make these predictions, we are all regarded as the protagonists of life, in the universe, are we the only life?

The most common version of the apocalypse is that the sun is running out of energy and the earth is entering an ice age, which was shown in the popular movie "The Wandering Earth" in the past. The earth is our home for survival, and the sun is the energy that sustains our life. If the sun goes out, first of all we lose the sky.

The sun, moon and stars in the sky will disappear, not because they are not there, but because we are no longer visible. Then, we will lose the attraction of the sun, and the earth will no longer revolve around the sun, but will drift aimlessly in space, and if we are lucky enough to be captured by another shining star, we may be able to start a new story, but only if humanity survives until that moment.

Because when we leave the sun, the temperature no longer exists, every 1 minute after 8 minutes, the earth is cooling, and after a few days, the temperature of the earth will drop to minus 17 degrees Celsius, and the changes of the earth after that we have seen in the movie, needless to say, the question is, when all photosynthesis on the earth stops, animals and plants die, and humans die, does it mean that life will cease to exist?

What is the definition of life? In the encyclopedic interpretation, life is a general term for the phenomenon of stable material and energy metabolism. Life is for the purpose of reproduction.

But that's just our definition, our interpretation of human beings as the dominant life on Earth. Life can only be used in general terms without definition, because we cannot be sure whether there is an unknown form of life. What if there is a life that does not need to breathe?

They also don't need light and heat, they don't need to reproduce, they can replicate themselves. They don't need to eat, or rather, they eat all the time.

Some of the behaviors we describe today are based on the characteristics of human society, whether there is another living society, they use completely different survival characteristics, even if the sun goes out, they can exist safely.

Every 1 minute after the minute, the earth is cooling, and after a few days, the temperature of the earth will drop to minus 17 degrees Celsius, and the changes of the earth after that we have seen in the movie, needless to say, the problem is that when all the photosynthesis on the earth stops, animals and plants die, and humans die.

It should take a long time because the Earth is protected by the atmosphere.

It should be 0 in a short time.

We will lose the attraction of the sun, and the earth will no longer revolve around the sun.

We will lose the attraction of the sun, the Earth will no longer revolve around the sun, but will drift aimlessly in space, and if we are lucky enough to be captured by another glowing star, we may be able to start a new story, but only if humanity survives for a moment.

Personally, I think it will take a day to reach it.

The specifics are unclear, and there is no exact data.

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.

According to scientists, the sun can still emit heat for 5 billion years so far. In 5 billion years, our technology will reach heights we can imagine, even before the sun goes down. Future technological developments will allow humans to leave the solar system and travel to more habitable systems.

What if the sun doesn't last 5 billion years, what happens when the sun goes down before we are technologically advanced, the earth will suddenly get colder, and the sea will freeze at a very fast rate. At that time, the earth's environment will no longer be suitable for human habitation.

1. After the sun is extinguished, there is still heat in our core. In order to find a warm environment, people had to move underground. With the current state of technology, there is no way to build an underground biosphere.

If the sun disappears, if the sun does not disappear and gravity does not exist, then there is no way for humans to survive but to build spaceships to escape from the earth. Because in the solar system, all celestial bodies revolve around the sun except for companion stars. If the sun has no gravity, then the earth may break away from the orbit of the solar system, or even collide head-on with other planets, and then it may cause a big **.

Second, human technology is powerless in such a situationHumanity will face extinction. That is, if the sun does not disappear suddenly, if the sun does disappear and there is not enough time to build an underground biological base and prepare for evacuation, then many people will die in a short period of time. The sudden death of the sun would be devastating to humanity.

It is important for the sun, for the solar system, for the earth, and for all of humanity. When the little sun disappears, the earth will turn into an ice ball, and then there will be no gravitational pull from the sun, and the earth can only wander in the silent universe and then be destroyed.

3. Of course, all this is just speculation, if the sun can still exist for 5 billion yearsIn 5 billion years, it is not surprising that enough human beings have developed technology to a point that it is hard to imagine that human beings may not spend their entire lives like it, leaving the solar system and going to more distant galaxies to find more suitable planets for human habitation. It may even be like the stars in **, the unit that can jump through the wormhole is light years, the speed unit of a spaceship, or the mecha carrying humans in the universe can navigate. Humans can no longer make their home in the solar system, but any star in the universe can survive on it.

So, even if the sun is destroyed, humans can still live well.

I think that human beings can last for about a month, because it is difficult for human beings to survive without the sun, and they will face a lot of practical problems.

The sun is the source of our human energy, and without sunlight, the temperature of the earth would be particularly low for us. Perhaps the energy on Earth will not last long. Maybe it's a year, maybe it's half a year, it's all possible.

If the sun goes out suddenly, I think human beings may hold on for a few days, and it is likely that it will last for a few months, depending on the resources of human beings now.