If there is no sun, can humans survive?
In human history, there have been two mass extinctions. The first time was around the Age of Discovery, when humans thought that the "earth was extinct". Just when everyone was panicked, the sun finally brought hope to humans. The second time was after the end of Age of Discovery, humans fell into famine due to the extinction of a large number of marine organisms. At that time, a scientist predicted that if humans had no sun, the earth would perish within millions of years. So the question is, if there is no sun, how will humans survive?
1. Humans on Earth will lose their energy source
According to scientists' ideas, if there is no sun, humans on Earth may lose their energy source. The largest and most important energy source on Earth is the core. Because the core of the earth uses hydrogen molecules and helium molecules as raw materials to melt and separate hydrogen at high temperatures, then uses hydrogen as fuel to generate heat, and then releases hydrogen through high temperatures, and finally decomposes hydrogen into carbon monoxide and oxygen and other substances. Therefore, the source of energy that can provide on the earth is the core. But without the core of the earth, there will be no place to store energy on the earth. Therefore, if the earth does not have the sun, the core of the earth will release a large amount of substances such as deuterium and tritium as the temperature continues to rise (hydrogen is a very dense element), so a large number of greenhouse gases and acid rain will appear on the earth.
2. Animals on Earth will lose their homes
Although most of the animals on Earth evolved from microorganism , without the sun, all the microorganisms on Earth will become extinct, which is undoubtedly a huge blow to the animals on Earth. On Earth, if the sun is lacking, it is difficult for organisms to survive. Because if the sun was not available and the earth's temperature dropped sharply, many creatures were likely to be frozen to death.
3. The sun will become the only source of human energy
In the process of releasing energy, the sun will release a large number of nuclear fusion reactions, and humans currently rely mainly on fossil fuels to provide energy, which is unimaginable. Without the sun, we will need less and less fossil fuel, and in this case, the earth's energy will be obtained from the sun. In the next few decades, we can use solar power and even develop new weapons such as nuclear fusion energy and hydrogen bombs and . But it should be noted that there is currently no large-scale commercial energy product used in industrial production.
4. The sun will swallow stars, and the radiation intensity will increase sharply
The mass of the sun is equivalent to 3-4 times the mass of the sun itself, but in the solar system, the mass of the star is far exceeding this value. For example, in the solar system, the age of the sun is about 6 billion years. But if there is no sun, then the star will be dragged by the star's gravity and fall into Milky Way , and the radiation intensity of the star will also increase sharply. In fact, some scientists have discovered that after the sun completely disappears, some biological species on the earth will gradually disappear. This is because besides the sun, there are other creatures on the earth.
5. The sun will swallow the atmosphere
The temperature of the sun is 570,000 degrees Celsius. The temperature is so high and such a huge temperature difference is absolutely fatal to organisms, which is also the reason why humans are often "froze to death". Without the sun, we will not be able to breathe normally, which will mean that the creatures on Earth are completely extinct. The Earth's atmosphere is so powerful that it can absorb and filter out harmful gases from the universe. But if other creatures on Earth do not have the protection of the sun, they cannot survive. As the saying goes, "the pride of heaven"!
