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The Moon, commonly known as the Moon and the Taiyin in ancient times, is a satellite that orbits the Earth. It is the only natural satellite of the Earth and the closest celestial body to the Earth (the average distance from the Earth is 384,400 km). In 1969, Neil Armstrong and Buzz Aldrin became the first humans to land on the moon.
In September 1969, the U.S. Apollo 11 spacecraft returned to Earth, and the U.S. Apollo moon landing program ended with Apollo 17. There is also the American film of the same name "The Moon" released in 2009.
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The moon is also known as the sun yin, commonly known as the moon. It is the only natural satellite of the Earth, the closest celestial body to the Earth, and the most thoroughly studied celestial body. The only celestial body that humans have ever visited in person is the Moon.
The Moon is the most obvious example of a natural satellite. In the solar system, except for Mercury and Venus, all other planets have natural satellites. The age of the Moon is about 4.6 billion years.
The Moon has a layered structure such as a shell, mantle, and nucleus. The average thickness of the outermost lunar crust is about 60-65 km. Below the lunar crust to a depth of 1,000 km is the lunar mantle, which occupies most of the moon's volume.
Underneath the mantle is the lunar core, which is about 1000 degrees warm and most likely molten. The diameter of the Moon is about 3476 km, which is 3 11 of the Earth and 1 400 of the Sun. The volume of the Moon is only 1 49 of the Earth, and the mass is about 735 billion tons, which is equivalent to about 1 81 of the Earth's mass, and the gravity of the lunar surface is almost 1 6 of the Earth's gravity.
There are dark parts and bright areas on the surface of the Moon. When early astronomers looked at the moon, they thought that the dark areas were covered by seawater, so they called them "seas". The famous ones are the sea of clouds, the wet sea, the still sea, etc.
The bright part is the mountains, which are dotted with craters. Located near Antarctica, the Bailey crater is 295 kilometers in diameter and can fit the entire island of Hainan. The deepest mountain is Newton's crater, which is 8,788 meters deep.
In addition to craters, there are also ordinary mountains on the lunar surface. Mountains and deep valleys are stacked on top of each other, creating a unique scenery.
The far side of the moon map The front of the moon is always facing the Earth, and the reason for this is the result of the long-term action of the tides. On the other hand, the far side of the Moon is mostly invisible from the Earth, except in the area near the edge of the Moon's surface which is visible in the middle due to the movement of the scales. In the days when there were no probes, the far side of the moon was an unknown world.
One of the great features of the far side of the Moon is that there are almost no fainter lunar features like the Lunar Sea. And when an artificial probe runs to the far side of the moon, it will not be able to communicate directly with Earth.
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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 one kilometer, which is twice the radius of the Earth. The rotation of the Moon is equal to the period of revolution, so the Moon always faces the Earth on the same side.
Moon
The front side of the moon is dotted with huge impact craters filled with basalt lava flows ejected from dark volcanoes, forming a vast plain called the "Moon Sea", in fact, there is not a drop of water in the "Moon Sea".
The moon is the brightest object in the sky other than the sun, and although it appears very bright white, its surface is actually very dark and its reflectivity is only slightly higher than that of old asphalt.
Because the moon is very conspicuous in the sky, coupled with the regular changes in the phases of the moon, it has had a significant impact on human culture such as myths and legends, religious beliefs, philosophical thoughts, calendar compilation, literature and art, and customs and traditions since ancient times.
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1. The moon, the name of the celestial body, is called the moon as seen by the naked eye of human beings, and is also known as Taiyin, Xuantu, Chanjuan, and Yupan in ancient China, which is a satellite of the earth and the fifth largest satellite in the solar system. The Moon is about a quarter of the diameter of the Earth and about one-eighty-one times the mass of the Earth. Its surface is covered with craters 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.
2. The Moon is the only natural satellite of the Earth, which may have been formed about 4.5 billion years ago, shortly after the rapid formation of the Earth, and there are several hypotheses about its origin, and the theory supported by more factual evidence is that it was formed by the debris produced by a huge collision between the Earth and a Mars-sized celestial body - "Chanwuteia", and gathered in the outer periphery of the Earth to form the "Great Collision Origin Theory".
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The moon is the only satellite of the earth, with a diameter of about 3,474 kilometers, a mass of about 1,81 of the earth, and a distance of about 10,000 kilometers from the earth. 2.Surface features:
The surface of the moon is divided into two parts, the highlands are made up of numerous plains and craters, and the lowlands are composed of the flatter moon sea and moon streams. 3.Geological features:
There are many lunar seas on the moon, which are large flat areas formed by lava activity. In addition, there are many geological features such as mountains, craters, moon valleys, etc. 4.
Lunar exploration: Humans have explored and landed on the moon many times, most notably the American Apollo program, which successfully landed on the moon and returned to Earth in 1969, becoming the first mission to land on the moon in human history. 5.
Formation of the Moon: There are several theories explaining the formation of the Moon, the most widely accepted being the "Great Impact" theory, in which a planet-sized object collided with the Earth billions of years ago, and the material from the collision eventually gathered to form the Moon. 6.
Influence of the Moon: The Moon has a greater influence on the Earth, mainly manifested in tidal phenomena, which cause the rise and fall of the oceans. In addition, lunar and solar eclipses are also caused by the relative position of the Moon and the Sun.
7.Significance of the Moon in Culture: The Moon has an important symbolic meaning in many cultures, as a patron saint, a source of inspiration, and a teller of time.
The moon is depicted and worshipped in many literature, art, and traditional practices. 8.Future Exploration Plans:
At present, many countries and institutions, including NASA, are planning future lunar exploration programs, including the establishment of lunar bases, scientific research and deep space exploration.
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The moon, the name of the celestial body, the human eye is called the moon with the naked eye, and the Lu people in ancient China called Taiyin, Xuantu, Chanjuan, and Yupan, which is the earth's amusement satellite, and the moon is the only natural satellite of the earth, which may have been formed about 4.5 billion years ago.
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