When human beings walked out of the earth with the help of technology, we first saw a vast solar system. The solar system is the home of the earth and human beings. Through observation, we found that the diameter of the Milky Way is more than 100,000 light-years, and the solar system is just a tiny star system on the edge of the Milky Way called Orion’s spiral arm.
Compared to the Milky Way, the solar system is very small, but if it is compared to the entire observable universe at present, the solar system is so small that it is not as small as a dust. So how did such a tiny solar system form? According to a large number of observational studies by scientists, the solar system was born in the solar system nebula 5 billion years ago.
Star systems in the universe are basically born from nebulae. Nebulae are a cluster of cosmic matter, in which there is a large amount of dense matter. Before the nebula has a huge motion and rotation, the center cannot condense and light up the stars, so the nebula must first find a way to move before it can hope to evolve into a star. So where does the power of the solar nebula come from?
Scientists believe that it may have come from a supernova explosion from an old star near the solar nebula. We all know that a star has a lifespan. The lifespan of a star with a larger mass is often shorter. When its life reaches the end, a supernova explosion will occur. This is the most powerful explosion in the universe.
The power of the supernova explosion is enough to cause turbulence in nearby nebulae, thereby giving impetus to the solar nebula. Under the impact of the supernova explosion, the solar nebula began to shrink and rotate. A large number of objects began to condense toward the center. The density and temperature of the center became higher and higher. Finally, Nirvana sublimated, and a new star was born. It is the sun.
After the birth of the sun, through continuous evolution and development, there was a later stable solar system. The earth was born 4.6 billion years ago, after hundreds of millions of years of evolution, a stable ecosystem was formed, and early primitive life was born 4 billion years ago. After billions of years of long evolutionary evolution, primitive life gave birth to mankind hundreds of years ago.
Through the above analysis, we can see that the destiny of the earth and mankind is closely related to the sun to some extent. The stability of the entire solar system is also very important to the earth, so can the earth and human beings survive forever in the solar system? Estimated to be very difficult.
Scientists have predicted through a large number of studies that three major events may occur in the solar system in the future, and they will all have a huge impact on the earth and mankind.
1. After 5 billion years, the sun will become a red giant. The sun is a star, and the star has a different life span according to its mass. According to the quality of the sun, its life span is about 10 billion years. Today, the sun has gone through 5 billion years and is still in its young age.
The sun now looks very mild, bringing suitable light and temperature to the earth, and life on the earth can survive safely. But this stable living environment will be broken with the continuous expansion of the sun in 5 billion years.
The burning of the sun is actually the central nuclear fusion. Nuclear fusion continuously loses mass by consuming hydrogen. Approximately 4 million tons of matter are converted into energy every second. The sun is equivalent to a celestial body formed by the aggregation of hydrogen elements. With the continuous consumption of abundant hydrogen elements and the continuous loss of quality, all hydrogen will be consumed after 5 billion years, and hydrogen nuclear fusion will stop at this time.
Without the hydrogen element, the stability of the sun will be greatly reduced. At this time, the outer shell of the sun will continue to expand outward, passing through the orbit of Mercury, the orbit of Venus, and finally approaching the orbit of the earth. The expanding sun will swallow Mercury and Venus and approach the orbit of the earth. At this time, the sun we see when standing on the earth will be very big. Every day we will see a giant sun that is many times larger than before rising from the east. Hanging high in the sky will bring us great oppression.
The sun’s orbit is approaching the earth, and the real scary thing is the sharp increase in temperature. The earth at that time can be said to be a purgatory planet, and the temperature is higher than the current Venus. Under such a high temperature, the ecology of the earth will also completely collapse, become a furnace, and completely become a planet where life cannot survive.
With the continuous expansion of the sun, the earth is no longer suitable for human survival, but the position of Mars and Jupiter has become a habitable zone. Therefore, humans at that time will migrate to Mars, and Mars will become the new home of mankind. In addition to Mars, several moons of Jupiter will become a water-rich planet due to the increase in temperature, and will also become a new home for mankind.
2. Venus and Mars may have major collisions with the earth, and celestial body collision events are very common in the universe. The early solar system was not as stable as it is now. At that time, not long after the birth of the sun, the remaining material of the nebula condensed to form as many as hundreds of planets. So many planets have not stable orbits and run around.
As a result, hundreds of planets began to collide continuously in order to compete for territory, and the earth was also not immune to collisions with a planet the size of Mars. The debris from the collision formed the early moon. Of course, the early Earth has not yet given birth to life, which is a lucky thing. If such a big collision occurs after the formation of the ecosystem and the birth of life, then life will come to an end.
Most of the hundreds of planets collided continuously, and most of them were shattered. In the end, only eight were left. As the collisions continued, the solar system continued to stabilize. A stable and balanced system is formed with the sun as the center and eight planets moving around it and restricting each other. This stable galaxy system has been in operation for more than 4 billion years. Will it continue to operate stably in the future? I am afraid it is also very difficult.
According to scientists’ research and exploration, because Mercury is very close to the sun, its orbit is the flattest in the solar system, and it will become more and more flat in the future. This increasingly flattened orbit will make Mercury’s orbit very unstable. Once Mercury departs from its current orbit, it will break the existing eight planetary stability system.
According to scientists’ simulations, 4 billion years later, Mercury may leave its current orbit and either directly hit the sun or hit Venus. If Mercury hits the sun directly, with the mass of the sun, this impact is similar to tickling, but will not have any obvious impact on the earth. But if Mercury does not collide with the sun, but collides with Venus, the impact on the earth will be very great.
You must know that Venus is the neighbor of the earth, it is very close to us, and its mass and volume are also very close to the earth. Once Mercury hits Venus, the orbit of Venus will also change, and then the two planets will collide towards the earth together, and Venus, which is similar to the earth, will hit the earth. The entire earth collapses and becomes the dust of the universe.
3. The collision and fusion of the Milky Way and the Andromeda Galaxy in 3.7 billion years. The Andromeda Galaxy is a neighbor of the Milky Way, and the distance between the two is about 2.54 million light-years. The solar system revolves around the galactic center, and the Milky Way also has its own revolution orbit. The Milky Way and the Andromeda Galaxy wrap around a common center of mass. In the process of movement, the two galaxies will continue to approach, and finally collide and merge into a larger galaxy.
According to the observations of scientists, the Milky Way and the Andromeda Galaxy will collide and melt in about 3.7 billion years. Will the collision and fusion of two large galaxies affect the earth and humans? Scientists believe that the collision and fusion of large galaxies is a very gentle collision. Because the distance between stars is very large, there is no need to worry about having a significant impact on the solar system and the earth.
Of course, whether there will be other changes in the future from the current observations is still unknown. It can be seen that before the sun’s life comes to an end, we still need to face a variety of possible cosmic disasters, and in these disasters, the earth is very difficult to escape, even if it does not disappear, it will become an unsurvivable Deserted planet.
And because human beings are intelligent life, with the help of powerful technology, our destiny may not be the same as that of the earth. Once human beings become an interstellar civilization, then the earth and the solar system will not be able to restrain us and threaten us. At that time, the entire universe is our home.
If the earth cannot survive, the solar system cannot survive, we can move to other galaxies, or even out of the Milky Way. Therefore, science and technology are the greatest support for mankind to change the destiny. Only by working hard to develop science and technology can we be immune to any possible disasters, so that human civilization will always exist in the universe.