Modern science believes that our sun was born 5 billion years ago. 5 billion years ago, the solar system was in chaos. After the sun was born, it absorbed a large amount of matter around it, so the mass of the sun accounted for 99.86% of the total mass of the solar system. The remaining , the eight planets, and other matter accounted for 0.14% of the total mass of the solar system. From the proportion, we can see that the mass of the sun is very large. The sun has been continuously releasing heat since its birth. Now the sun has been burning for 5 billion years. Seeing this, many friends may have a question, that is, why can the sun burn for so long? In fact, the combustion of the sun is different from the ordinary combustion on our earth. The combustion on our earth mainly relies on oxygen . If there is not enough oxygen, the fire will be extinguished.
. The sun is not so burning, but rather it is the reaction of nuclear fusion inside the sun. The so-called fusion reaction refers to the collision of atomic nuclei . Under certain conditions, atomic nuclei collides with each other. During the collision of these nuclei, a new nuclei will be generated, and a part of the energy will be lost. This part of the lost energy will be converted into energy and released, and then absorbed by other celestial bodies. After research, scientists found that the temperature inside the sun is as high as 15 million degrees Celsius. In this high-temperature area, the sun will convert hydrogen nuclear fusion into helium elements and release huge energy. Generally speaking, the four hydrogen atoms inside the sun fusion into one helium atom, and the mass will be lost by 0.0276 units, which is equivalent to a gram of hydrogen loss of 0.0069 grams. These lost mass will be converted into energy and released.
For humans, the energy of the sun is very rich, which can allow humans to continue to use 5 billion years. However, scientists recently found that the sun is about to start hibernation mode. It may be difficult for everyone to imagine what the sun hibernation looks like. In our impression, hibernation is to stop moving. If the sun hibernation, can the earth still receive the heat released by the sun? After research, scientists found that if the sun really ushered in a hibernation period, then this period would last for 30 years. At that time, the earth might usher in a small ice age. After research, scientists found that the sun had hibernated very early. In 1843, the cycle of sunspots was about 11.2 years. At that time, the sun had a brief hibernation period. British scientists found that from 1645 to 1715, almost all sunspots disappeared, and the heat released by the sun was far less than that now.
What are sunspots? In fact, sunspots are areas that look very dark on the surface of the sun. Since it is colder than other parts of the surface of the sun, its temperature is around 3,600 degrees Celsius. Sunspots appear on the photosphere. After research, scientists have concluded that the solar cycle is about 11 years, and now it is the sun in its 25th cycle. Scientists speculate that it will reach its peak in 2025. Sunspots can generate huge energy. If the sunspots disappear, it means that the heat released by the sun will also drop. Generally speaking, the diameter of sunspots is much larger than we imagined. They can reach about 200,000 kilometers, equivalent to the size of a Jupiter .
After the sunspots decrease, even if the sun enters hibernation, although it is very different from the hibernation we imagine, it has many impacts on life on Earth. Scientists believe that after 2030, solar activity will decrease by about 60%, and the earth will enter the Little Ice Age, and many extremely cold areas will appear on the earth. After all, there can be temperature on the earth, all light and heat from the sun. If there is no sun, the temperature on the earth will be close to absolute zero. In the history of the earth, there have been three Little Ice Ages. Scientists believe that it caused food shortage and plant death on the earth at that time. Various phenomena such as animal death, so the Little Ice Age is not a good thing for life on Earth.
However, scientists believe that the Little Ice Age is a good thing for the earth, so why do you say so? With the advancement and development of human science and technology, humans have been destructing the earth's environment more and more serious. Now the earth's temperature continues to rise, and the global warming of is getting worse. Glaciers in the Antarctic and Arctic have begun to melt. Scientists believe that if it continues to develop, all the glaciers in the Antarctic and Arctic will melt, and then all the coastal cities will be submerged. Originally, the land area on the earth only accounts for 29% of the total area. If coastal cities are submerged, the land area on the earth will become smaller. At that time, the creatures on the earth may launch wars to compete for land resources.
In addition, melting glaciers will also awaken the hibernating virus. Scientists have found that when glaciers in the Antarctic and Arctic, many ancient viruses are frozen. These ancient viruses do not die, but hibernate. If all the glaciers in the Antarctic and Arctic melt, these ancient viruses will wake up. At that time, organisms on the earth may be infected by these viruses. In 2014, in the Russian Arctic, humans discovered a 1.5 micron virus. Generally speaking, the volume of our common virus is about 100 nanometers, while 1.5 micron is already very large. This virus is 15 times that of ordinary viruses. Although we are not sure how much impact this virus has on modern organisms, their harm must be stronger than the current viruses.
After the sun hibernates, the earth will enter the Little Ice Age, and the temperature of the earth will naturally drop at that time. This will allow the problem of global warming in the environment. In the long history of the earth, the earth has experienced many small ice ages and large ice ages. The large ice age period can last for millions of years. This is actually a mechanism for the earth's self-repair. Although the Little Ice Age will have a certain impact on life on Earth, it will not cause the demise of a large number of organisms. However, the earth's temperature may drop a little. At that time, everyone can only keep warm in advance. However, through research, scientists have found that we are currently in the Great Ice Age. Scientists believe that the emergence of the Great Ice Age is related to astronomical factors.
Scientists speculate that during the movement of the solar system, the solar system may pass through some areas of dense matter. At this time, the solar heat received by the earth will decrease, so the earth will have a great ice age. It is currently in the Quaternary Great Ice Age. Seeing this, many people may have a question, why we don’t feel very cold. After calculation, scientists found that the coldest period of the Quaternary Ice Age was about 18,000 years ago. The temperature at that time was about 15 degrees lower than the current average temperature. The next time the earth enters the real ice age is 90,000 years later. At that time, the temperature on the earth will drop significantly, and after the temperature drops rapidly, many organisms and plants will die.
Although 90,000 years are still very far away for humans, if human civilization wants to develop for a long time, then we must be prepared in advance. For example, we can build some houses underground, and when the ice age really comes, we can enter underground life. For humans, the ushering in the ice age is not what we are most worried about. At present, the issue that humans should worry about the most is the issue of global warming. Scientists believe that global warming has begun and will bring huge disasters to humans. The earth is the home for humans to survive. If the earth's environment is destroyed, then humans cannot survive on the earth. For the earth, humans are a kind of creature.
If humans disappear from the earth, then in a few thousand years or hundreds of millions of years, intelligent life may evolve on the earth, and these intelligent life will replace humans and become the new overlord of the earth. Therefore, the editor believes that only by protecting the earth's environment can we survive on the earth for a long time. The editor hopes that human civilization can continue to develop. In the future, we may be able to unravel more mysteries in the universe. Do you have anything to say about this?
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