Do you really understand the moon? Does it have anything to do with an alien monitor?

As early as October 4, 1957, the former Soviet Union successfully launched the first man-made earth satellite to explore the moon by rocket. Since then, we have entered the space age.

However, with so many years of lunar exploration history, do we really know about the moon? Is the relationship between the moon and the earth really that simple?

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In fact, this is not the case.

From the distance between the earth and the moon

The distance between the moon and the earth is very far. The distance between the moon and the earth is about 363300 km when it is closest to the earth, and about 405500 km when it is farthest from the earth, with an average of 384400 km. What is the concept? The diameter of the earth is 12742 kilometers, and the distance between the moon and the earth is enough to hold up to 30 earths.

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The mystery of the formation of the moon

How did the moon come into being?

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The formation of the moon has always been a mystery. Some people say that the moon was accidentally captured by the earth. When the earth was still young, the moon was attracted by the earth and started a journey with each other. Some people say that the moon is an alien spaceship sent by aliens to monitor the earth near the earth. The craters on the surface of the moon are not colliding, but the unique form of their spaceships.

Obviously, for these two conjectures, we can clearly feel its imaginative color, and scientists even scoff at this idea. It was not until the appearance of the theory of planetary impact that scientists reached a more unified understanding of the formation of the moon.

Shortly after the formation of the earth, there was another planet in its orbit, Theia. Theia is a planet the size of Mars. It’s filled with liquid water, so it looks light blue on the surface, especially beautiful.

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However, this harmonious and stable relationship didn’t last long. The intervention of Venus made the earth and Theia get closer and closer, and there could not be two large celestial bodies in the same orbit, so the orbits would continue to be close due to gravitational disturbance and velocity difference, and finally collided.

This huge impact can not be underestimated. After the collision, the shell of Theia was completely broken, and the exposed core fused with the earth’s core. After the collision, a large amount of material was thrown into space. After a long time, a small part of the material escaped from the earth and formed an asteroid, and some of it formed today’s moon.

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And the earth captured the liquid water above Theia, and gradually formed its own unique atmosphere. The chemical reaction after the impact sent out new elements, so that life had the conditions to be born.

If there are thousands of hypotheses, why is the impact theory more convincing?

Half a century ago, from 1969 to 1972, the United States made six manned lunar landings and brought back 382 kg of lunar rock samples. The rock samples are divided into two parts, one for research and the other for vacuum storage.

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Scientists found that these rock samples are almost the same as the rocks on earth, and they all have stable isotope ratios, which means that they have the same origin and all come from the same place.

Interestingly, the name of Theia should be based on the name of the moon. In ancient Greek mythology, the name of the moon god is Selene, and her mother is Theia, indicating that this planet should be the mother of the moon.

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How special is the moon

The most special thing about the moon is that it always faces the earth in the same way. We can never see its back on the earth. For this phenomenon, there is a very domineering name – tidal lock.

We can’t understand the vast universe, and so can the moon. Even though our research technology for the moon is relatively mature, there are still too many places to explore. What do you want to say about the moon? Welcome to comment area.

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