Scientists speculate that there may have been two suns in the early solar system, and one left the solar system

Hundreds of years ago, human beings entered the road of scientific and Technological Development and began a brilliant course of scientific exploration. With the help of science and technology, we soon realized a great dream, which is flying. Finally, human beings have the ability to walk out of the earth and begin to explore the vast and mysterious universe.

After walking out of the earth, the first thing we face is the solar system, the parent galaxy of the earth. The solar system is a stellar system, which consists of the central star, the sun, eight planets and a large number of other celestial bodies. Through observation and research, scientists found that the solar system can be divided into inner solar system and outer solar system.

The inner solar system is mainly composed of eight planets, while the outer solar system refers to the area beyond the Kuiper belt. Scientists once thought that the Kuiper belt is the boundary of the solar system. As long as the probe can cross the Kuiper belt, it is out of the solar system and into the extrasolar space.

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But later, with the continuous progress of human observation technology, we found that there are more vast and mysterious Oort clouds outside the Kuiper belt. It surrounds the inner solar system, like a giant galactic shield, wrapping the solar system. If we measure the earth from the outside of the solar system, it is difficult to really observe it. The reason is that there are two protections protecting the earth. One is the Oort cloud, which is one light year thick, and the other is the Kuiper belt.

Since the discovery of the Kuiper belt and the more mysterious Oort cloud, scientists have been exploring the edge of the solar system. Unfortunately, the scientific and technological strength of human beings is still very limited. Our current detectors can only carry out some simple exploration and Research on the Kuiper belt, and we have no ability to reach the Oort cloud in the more distant periphery.

The Oort cloud is the most remote region in the solar system, much farther than the exoplanets and the Kuiper belt. Unlike the doughnut like Kuiper belt, the Oort cloud is a huge, thick spherical shell that surrounds the entire solar system. The inner edge of the Oort cloud is about 1000 Au from the sun, while the outer edge is about 100000 Au from the sun. This area is filled with billions or even trillions of ice and rock left by the formation of the solar system.

At present, there is no definite answer to how the Oort cloud is formed. But now we basically know how the stellar system is formed, whether it is the solar system or other stellar systems in the universe, are basically born in the nebula. That is, the region where the star has not yet been born is initially a nebula.

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When the matter in the nebula rotates continuously and the central matter gathers more and more, it will form a celestial body, which is the original star. After the formation of the original star, it will accelerate the absorption of material through the strong gravity, and its mass will become larger and larger. Finally, it will ignite the internal nuclear fusion and completely evolve into a burning star.

After the formation of stars, the leftover materials continue to form planets and other small bodies. Theoretically speaking, in the early days of a single star system such as the solar system, the matter in the nebula was basically absorbed by stars and planets, and it is unlikely that a ring like the Kuiper Belt will form at the edge of the final star system, let alone the formation of celestial bodies and the Oort Cloud with more matter.

That’s why scientists are very interested in the origin of the Kuiper belt and the more mysterious Oort cloud. So how did the solar system shield form in these two loops? In this regard, scientists think of a possibility, that is, the early solar system may have two stars, in addition to the sun, it also has a sister with the same mass as it.

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If two stars were born in the solar nebula five billion years ago, then one star left the solar system later, forming the Kuiper belt and the Oort cloud in the process, it can be explained. Soon after the sun formed, it interacted with this very close yellow dwarf star to form a binary system. However, after several million years of operation, another star was gradually thrown out of the solar system.

There is a big difference between single star system and binary star system in the distribution of gravitational structure. Through observation, scientists found that most of the star systems in the universe are binary star system or even three-star system, while single star system such as solar system is very rare. Through research, scientists believe that in the process of star formation, nebulae often produce two or even three stars.

However, most of the star systems, the birth of two or three stars, in the later evolution process, gradually formed a stable gravitational balance, and finally formed a stable binary system or three-star system. However, the solar system is different. In the process of continuous evolution, the two stars formed by the nebula have not been stabilized. On the contrary, one of them gradually deviated from the orbit of the galaxy and finally escaped from the solar system.

An unstable binary system will also have a great impact on the planets, asteroids and other celestial bodies and matter of the whole galaxy. The inner solar system is greatly influenced by the gravity of the sun and gradually stabilizes. However, the edge of the solar system is greatly influenced by another star. Therefore, in the process of this star constantly escaping from the solar system, the Kuiper belt and the outer Oort cloud are also formed on the edge of the solar system.

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A large number of celestial bodies, dust and other materials in the Oort cloud may be orbiting another star. They were brought to the outer solar system by a star. Finally, the star broke away at a faster speed. Finally, these materials were left behind, and the celestial bodies formed the present Oort cloud.

If scientists speculate that there were two stars in the early solar system, then the mass of the celestial bodies in the solar system is far more than what we can see now. Some scientists believe that there may be hundreds of planets in the early solar system, but now there are only eight planets. Where are the others?

Scientists explain that the early solar system was unstable. Hundreds of planets collided with each other, leaving only eight. But here is a question: if there were hundreds of planets in the early solar system, even if they collided later, there would be a lot of planetary debris in the inner solar system. But now we only find that Saturn has rings, and there is an asteroid belt between Mars and Jupiter.

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Scientists speculate that these two debris regions may have been formed after the impact and destruction of the planets in the early solar system. But where are the masses of the two planets and a lot of other planetary debris? They may end up in the outer solar system, and the star that took them away may be the one that left the solar system.

Through this conjecture, we think of the ninth planet that scientists have been conjecturing in recent years. Through the observation of abnormal orbits of many celestial bodies at the edge of the solar system, scientists believe that there will probably be a planet at the edge of the solar system. It’s just that we can’t find it with our current observation capabilities.

If the ninth planet really exists, scientists once thought that it might have come from outside the solar system, accidentally entered the solar system and was captured by the sun’s gravity. Some scientists think that it may come from a planet formed in the early stage of the solar system, but later it ran to the edge of the solar system. A planet several times larger than the earth wants to run to the edge of the outer solar system. If there is no special gravitational pull, it is impossible to achieve it, and this gravity may be driven by the star leaving the solar system.

Therefore, it is reasonable that there might be two stars in the early solar system. Of course, at present, it is only a guess of scientists. The answer is actually the Oort cloud. As long as we can enter the Oort cloud and conduct detailed observation and Research on the celestial matter there, we may be able to find the answer.

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However, it is not easy to travel freely through the Oort cloud. The diameter of the whole solar system, including the Oort cloud, is at least 2 light-years or more. Before the super fast speed of human beings, we have no ability to explore the Oort cloud. Even voyager-1, the fastest detector of human beings, will need at least 5000 years to enter the inner edge of the Oort cloud, but it is not enough to cross the Oort cloud for more than 10000 years.

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