The moon, as our closest "cosmos partner," seems familiar, but it is full of a lot of unknown cold knowledge and mysterious charm。
1. The mystery of the birth of the moon
The moon is the only natural satellite of the earth, and there are many hypotheses for its formation. Interestingly, the big collision says that about 4. 5 billion years ago, the size of mars, teia, hit the earth, generated a large amount of debris that came together around the earth and eventually formed the moon today. The collision changed the earth and created a unique moon。
2. Maximum ring mountain secret
The lunar surface is dense and mostly formed by impacts of asteroids or comets. One of the largest antarctic-atken basins, with a diameter of over 2,500 kilometres and a depth of about 13 kilometres, is one of the largest and deepest impact basins of the solar system, witnessing countless cosmic shocks experienced by the moon。
Gravity versus temperature difference
The moon's gravity is only one sixth of the earth, and astronauts are walking at a unique “jumping” pace. Moreover, the absence of atmospheric protection makes the moon very hot by day and by night, which can reach 127 degrees celsius by day and 183 degrees celsius by night, a huge challenge to life。
4. New discoveries of water ice resources
The moon is not dead. Recent studies have found that at two extremes, water ice is likely to exist, brought about by comet impacts and hidden in permanent shadow craters. The presence of water ice provides an important resource for future moon base construction and long-term exploration。
Key impacts on earth
The moon has a major impact on the earth. Gravity triggers tides and affects the ecological balance of the oceans. It also stabilizes the earth's rotational axis angle, stabilizes the earth's climate relatively and creates favourable conditions for the birth and evolution of life。
In his book the dark blue dot, carl sagan mentions that the earth is a dark blue dot in photographs taken from space, and the moon is the closest object to the earth, and in this view of the universe, the moon is as small as the earth。
Light blue dot
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