On December 17, 2020, the Chang'e-5 return module landed safely and brought back nearly two kilograms of lunar samples, the first time my country's extraterrestrial celestial body sampling was returned. It is reported that lunar sample 001 contains 100 grams of lunar soil samples. The container material is artificial crystal, and the lunar soil is stored in the hollow sandwich sphere shape in the center.
From the lunar soil seen at a magnification of 20 times, the brown glass-like substance can be clearly seen in both reflected light and penetrating light. Our common glass is the product of artificial firing. How did the broken glass come from the moon?
The American Apollo landing on the moon was more than 50 years ago, and the lunar bases of the United States and other countries are still on paper. Obviously, the glass on the moon is not an artificial product.
Artificial glass is produced at high temperature, and glass is also produced in the same natural high temperature environment. For example, when a meteorite hits a high temperature, the rock melts and then cools to form a glass-like substance.
In 1844, the British scientist Darwin obtained a strange glassy stone (later named Darwin glass) from Australia. At that time, there were two main explanations for its origin: one was the origin of the earth, which believed that it was the product of a volcanic eruption. , or the product of the meteorite hitting the Earth; the second is the origin of the moon, which is believed to be the result of a lunar volcanic eruption or a meteorite impact.
There is a dense atmosphere on the surface of the earth, and most meteorites burn up before they fall to the ground. Only larger meteorites can fall to the ground. The moon does not have a dense atmosphere, and meteorites large and small can hit the moon to form craters.
Since there is no atmospheric buffer to reduce the speed of meteorites, the speed of meteorites hitting the lunar surface generally exceeds 12 kilometers per second. When the collision occurs, huge shock waves and heat will be generated. The meteorite surface and the impacted lunar surface rapidly melt or even vaporize in an instant. At the same time, a large amount of material splashed out upon impact.
Whether it is left on the lunar surface or splashed out, the molten material can form natural glass after cooling. This is the origin of the tiny glassy rocks in the Chang'e-5 lunar soil, and it also answers the origin of Darwinian glass.
Because lunar soil mainly contains rocks, debris from rock beds, and vitreous particles produced by impacts, etc., the texture of the particles is extremely fine, but they are as sharp as the tip of a knife. It is mainly composed of oxygen, silicon, iron and other elements, does not contain any organic nutrients, and is very dry, so it is impossible to grow vegetables or potatoes.
