The moon is a spherical celestial body revolving around the earth and the only natural satellite of the earth. Commonly known as the moon or the moon, it was also called Taiyin, Xuantu, Chanjuan and Pan Yu in ancient times.
The moon is the only natural satellite of the earth, which may have been formed about 4.5 billion years ago. Shortly after the formation of the earth, there were several hypotheses about its origin. There is more factual evidence to support the "theory of the origin of the big collision" formed by the debris generated by the huge collision between the earth and a celestial body the size of Mars.
There are a large number of huge impact craters on the front of the moon, which are filled with basalt lava flows from dark volcanoes, forming a vast plain called "Moon Sea". In fact, there is not a drop of water in the Moon Sea.