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Among the reasons for the formation of <> moon, the most accepted ones are the impact theory and the capture theory. The hypothesis that the Moon formed in the solar system shortly after the formation of the Earth, was later captured by the Earth's orbit and became a natural satellite of the Earth, and was repeatedly impacted to become what it is today, is included in the formation of the solar system. The solar system is thought to have been a nebula at first, relying on thin gravitational forces to interact with each other, and after the equilibrium is broken, the matter accelerates and condenses to form various celestial bodies, which collide and merge with each other, and finally form a star system centered on the star Sun, containing countless celestial bodies and 8 planets and their moons.
The impact theory holds that the Moon is formed by the condensation of debris formed by the impact of the Earth, and then captured by the Earth's gravity. This hypothesis is that shortly after the formation of the Earth, a huge asteroid with a size close to Mars hit the Earth, and the debris formed the Moon, making the Earth's rotation speed at that time more than 5 hours per week, and the orbital plane of the Moon after the impact was on the same plane as the Earth's equatorial plane. The moon rocks brought back by the Apollo moon landings increased the likelihood of impacts, and it has been analyzed that the proportion of oxygen isotopes in the moon rocks is almost the same as that of the mantle.
Either hypothesis, the Moon is not considered to be an artificial celestial body. Although the diameter of the moon is only about 1 4 of the earth, it is still a very huge celestial body, and the interior of the moon is not empty as once thought, but also has an iron-rich core, and the temperature is estimated to be about 1000, which is not suitable as an ideal place to live, and it cannot be a "spaceship" deliberately built by some super civilization. And if it is created, then the person who built it can only be a super civilization that is countless times more advanced than humans, but there is no basis for the existence of any super civilization in the solar system at present.
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No. Because the Moon is naturally formed, and humans cannot make such large objects, the Moon will not be man-made.
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No, because there are no conditions for human beings to live on the moon, and there is a lot of radiation on the moon, which has a great impact on our human body.
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The Moon is not an artificial celestial body, the Moon was separated from the Earth and was once part of the Earth because the Earth was impacted.
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The Moon is a celestial bodyCelestial bodies refer to objects in space, and more broadly they are all individuals in the universe, as well as a general term for various astral bodies and interstellar matter. Artificial satellites, spacecraft, space laboratories, lunar probes, planetary probes, etc., which are launched by humans and operated in space, are called artificial celestial bodies.
The Moon is a spherical body that revolves around the Earth and is also a natural satellite of the Earth. The Moon is the fifth-largest moon in the solar system, with an average radius of about kilometers, which is equivalent to times the radius of the Earth; The mass is close to kilograms, which is twice that of the Earth. The surface of the Moon is riddled with craters that may have been formed by the impact of small celestial bodies.
The average distance between the Moon and the Earth is about 10,000 kilometers, about 30 times the diameter of the Earth.
Revolution and rotation of the Moon.
Revolution. The Moon orbits the Earth in a circular orbit. The great circle of this orbital plane on the celestial sphere is called the "white path".
The plane of the white channel does not coincide with the celestial equator, nor is it parallel to the plane of the ecliptic, and the spatial position is constantly changing. Cycle day. The average inclination of the lunar orbit (white path) to the Earth's orbit (ecliptic) is 5°09.
But it is known that the Moon is gradually departing from the Earth at an average rate every year.
Rotation. The Moon rotates while revolving around the Earth, and the period day is exactly a sidereal month, so we can't see the far side of the Moon. This phenomenon is called "synchronous rotation", or "tide locking", and is almost a universal law in the world of solar system satellites.
It is thought to be the result of the long-term tidal action of satellites on planets. The balance movement is a wonderful phenomenon that allows us to see 59% of the surface of the moon.
Of course, and the rotation period of the Moon is the same as the rotation period, which is about 27 days, so we can only see one side of the Moon on Earth and not the other.
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It may be a cerebrovascular problem.
Yes. Yes. Will definitely drop.
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