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If we stand on the earth and cannot see the back of the moon, will we not be able to see the back of the sun?
What exactly is there on the back of the sun has been bothering humans for thousands of years. In the 5 years of ancient Greece, there are many legends about the story opposite the sun.
Until today, there is still a question in these doubts: Is there an earth on the back of the sun? It was known as the ninth largest planet in the solar system after Pluto was brutally relegated to dwarf planet .
So is the fact really so exaggerated? Can we use today's science and technology to uncover the mystery behind the sun?
Anti-Earth
The year 500 BC has a history of nearly 3,000 years, and during that period, the concept of anti-Earth finally appeared in ancient Greek civilization. The term
actually refers to a planet similar to the earth on the back of the sun. Ancient Greeks called it anti-earth.
means that opposite the sun, there is a planet with a speed, efficiency, and cycle that is very similar to that of the Earth.
Because the two operate very similarly, people cannot stand on Earth to observe what the planet opposite the sun looks like.
What is surprising is that the ancient Greeks believed that anti-earth also had the energy that could nurture life and reproduce civilization.
First of all, we can see if the concept of anti-earth is objective?
In the distant year of 500 BC, the ancient Greeks proposed that the earth could not be the center of the universe. In order to confirm this hypothesis, countless ancient people proposed different concepts to prove it.
has the idea of anti-earth in it. Ancient Greek philosopher Phelorous was the first to propose the concept of anti-earth. At that time, he only wanted to further prove that planets like Earth may be just a drop in the ocean in the universe and will not appear particularly rare.
So he believed more firmly that the earth is neither the center of the universe nor the only celestial body in the universe that nurtures life. On the back of the sun is a planet similar to the earth. Phyllos gave it a name called Anti-Earth.
Although it sounds too far away from now on the 500th BC, the ancients already had the concept of the universe and the earth at that time.
shows that humans' exploration of astronomy is endless. However, in thousands of years of exploration, people have always wanted to see if there is a celestial body similar to the earth on the back of the sun.
Until 1767, the internationally renowned scholar Euler proposed a hypothesis.
Euler believes that anti-earth may actually exist, and his argument includes: under the gravitational force of a small object, they will be in constant state of operation relative to each other. To put it simply, the Earth is equivalent to two objects remaining relatively still under the joint action of a certain gravity.
So when we humans look at the moon on Earth, we always feel that it does not rotate, but in fact, because the operating states of the two are basically similar, and under the influence of tides and magnetic fields, humans cannot see the back of the moon.
The same principle can also be used in the movement laws of the sun and the earth. Therefore, we cannot stand on the earth to see if there are any other celestial bodies on the back of the sun?
Lagrangian point
After countless scientists' consideration and in-depth research, it was finally concluded that two large objects will remain relatively stationary under the action of gravity, and that specific point is called the Lagrangian point.
Based on this principle, scientists later calculated that the sun and the earth may have remained relatively stationary for a long time, and in the celestial body system , which consists of two celestial bodies, there are 5 specific Lagrangian points.
But unfortunately, there are only two relatively stable points, and they are not on the straight line where the sun connects to the earth, but are distributed at the most edge of this celestial system.
means that when viewing them from the perspective of the earth, both points can be observed.
But unfortunately, there is only one Lagrangian point on the back of the sun, and it is not in a stable state yet.
Then we can imagine if an object is placed in a non-stable state, is it possible that it will deviate from its orbit?
Scientists also had these doubts. At the end of the last century, many astronomers conducted a large number of observations and finally concluded that There is only one L3 Lagrangian point on the back of the sun.
If the ancient Greeks speculated that there was an anti-earth on the back of the sun, then this celestial body was placed on the L3 Lagrangian point. Of course, this point is only that humans cannot directly observe when standing on the earth.
Assuming it really exists, its operating state must not remain stable forever, and it may even become unstable due to the powerful celestial gravity and magnetic field.
It is either hiding and seeking with the earth, or deviating from its orbit, or colliding in the orbits of other planets. Of course, as long as it exists, it may be thrown out of the solar system under powerful physical force.
You may feel that the anti-Earth does not exist under the arguments of countless scientists.
Nowadays, human science and technology level has been developed rapidly, so it is not that easy for us to find the answer to this question.
does not exist
We can directly use technology to reveal the truth. For example, in 2006, NASA launched two Sun-Earth-related astronomical equipment into the orbit of the sun.
6 years have passed, and these two satellites, , have been detecting and researching on both sides of the sun's orbit. However, they have not brought out specific information to prove that there is another planet that has not been discovered by humans on the back of the sun relative to the earth. That is to say, the back of the sun, even if humans cannot directly observe it when standing on the earth, we cannot imagine that there is an anti-earth on the back of the sun.
In addition, we can also understand it in this way: If humans stand on the earth and cannot directly observe the back of the sun, can humans stand on other celestial bodies to see the other side of the sun?
As early as the 1950s, countries led by the United States and the Soviet Union successively launched many detectors for studying astronomical data into space.
More and more countries have launched satellites in tens of thousands, and they are all distributed in different celestial bodies and orbits.
In other words, these detectors can help people observe different angles of the sun from multiple angles, but they do not bring back specific information to prove that the ancient Greeks believed that there was an anti-earth statement on the side of the earth facing away from the sun was correct.
From these various data and information, we can draw a positive answer - there is actually no other earth on the back of the sun.
And humans should also cherish their beautiful homes, and should not always think about moving to another celestial body suitable for human habitation after consuming the resources of the earth.
Perhaps the earth is not uncommon in the universe, but at least for the moment, the earth can give mankind the most wealth.
