Can the life of the sun be extended to 1,000 billion years? The answer is yes

By yqqlm yqqlm

Everything in the universe is not eternal, and the sun on which we humans live is no exception. According to scientists’ speculation, the sun’s lifespan is about 5 billion years. When the sun”ends of life”, its volume will be drastically Expand and transform into a”red giant star” whose surface will reach near the Earth’s orbit, and may even exceed this range At that time, the earth is likely to be destroyed.

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The sun will destroy the earth in 5 billion years. What should humans do by that time?

Although the future of the solar system is worrying, the good news is that 5 billion years are very long, and humans should have enough time to develop their own strength. So we have a simple answer to this question, that is, by that time, humans with highly advanced technology have already escaped from the solar system.

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but positive The so-called”golden nest and silver nest are not as good as one’s own dog nest”, it is impossible for human beings to give up their home planet without a last resort. It is conceivable that if human beings are strong enough, they will find ways to prevent such things from happening, and the simplest way is to find ways to greatly extend the life of the sun.

There are countless stars in the universe, and their life spans are also different. The short ones may only be millions of years, while the long ones can reach more than 100 billion years. So can future humans extend the life of the sun to 1,000 billion years? The answer is yes.

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In the universe All stars obey a law, that is, the smaller the mass, the longer the life span, and vice versa. We can simply understand this as that the smaller the mass of a star, the less intense its internal nuclear fusion, and the higher the utilization rate of its”fuel”, which can make the star”burn” for a long time.

It can be seen that if humans in the future reduce the mass of the sun to a certain level, the lifespan of the sun can be extended to 1,000 billion years. Then, to what extent?

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Above It is the relationship between the mass of a star and the life span. The abscissa is the multiple of the star relative to the mass of the sun, and the time unit of the ordinate is”100 billion years”. We can see that a star with 0.2 times the solar mass corresponds to The life span is more than 1,000 billion years. In other words, this goal can be achieved by”digging out” the mass of the sun by 80%. What about the”dug” solar matter?

Stars are actually the product of a large amount of matter gathered together under the action of gravity. Therefore, if the”dug” solar matter is divided into 4 parts, each part of the solar matter will reassemble, and then Spontaneously forming a smaller star, so that you can create four more”little suns” with a lifespan of 1,000 billion years. Counting the original one, there are five in total.

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Need attention However, since the minimum mass limit of stars is 7%to 8%of the mass of the sun, humans in the future can even divide the sun into 13″little suns”, so that they can”burn” more than 1,000 billion years. Much longer. So how should we do such a thing? There may be the following three methods.

Method 1:Use super-large high-temperature resistant machinery directly to”dig” the sun.

Method 2:Use extremely high-energy lasers or particle streams to”blow” material on the sun’s surface.

Method 3:Use a strong electromagnetic field to make the sun’s rotation continue to accelerate. When the sun’s rotation speed reaches a certain level, the”centrifugal force” generated by its rotation will”throw away the sun’s surface”come out.

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Although the above The method seems a bit weird now, but this does not mean that future humans will not be able to do it. According to the”Kardashev civilization level” standard, Type II civilization should have this ability to manipulate stars, and judging from the current development speed of human civilization, it is estimated that it only takes a few thousand years for humans to enter II. Type civilization. What, you said that thousands of years are not enough? So 100 million years should be enough, right?

Therefore, we should be optimistic to believe that, if no accident, humans in the future can enter Type II civilization before the sun destroys the earth. At that time, humans can make appropriate changes to the sun so that the sun’s The life span is greatly extended.

In this way, humans can have more time to develop peacefully in the solar system instead of running around in the universe. It is conceivable that with the continuous development of human civilization, if in the future One day, human beings accidentally entered Type III civilization, so the so-called”extending the life of the sun to 1,000 billion years” is nothing at all.

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