Chinese researchers have carried out in-depth research on the data of yutu-2 radar, and obtained important discoveries and understandings of lunar soil and shallow fine structure in the chang’e-4 landing area. It shows that this area has experienced many times the accumulation of small objects impact sputters and volcanic eruptions, revealing the evolution history of the oldest and largest impact basin on the moon. On January 3, 2019, chang’e-4 successfully landed on the back of the moon for the first time in human history. Its landing site is located in the von Kamen impact crater in the Antarctic Aitken basin. < p > < p > yutu-2 lunar rover is equipped with many scientific detection instruments including radar, which can realize in-situ detection of lunar material composition and shallow structure. Scientists can reconstruct the impact history of the Antarctic Aitken basin and reveal the deep material composition of the moon. < / P > < p > research teams from the Institute of Geology and Geophysics, Chinese Academy of Sciences, Institute of aerospace information innovation, and Macao University of science and technology have carried out in-depth research on radar detection data in the first three months. The results show that the lunar surface material detected by yutu-2 comes from the nearby fenson impact crater, rather than from the basalt filled by the von Kamen crater itself. At the same time, the radar profile also reveals that the landing area has experienced many impact events, the accumulation of sputters and the eruption and filling of basaltic magma. According to experts, the impact of small celestial bodies was an important driving force for the early evolution of the earth, but the long-term geological tectonic activities have erased most of the traces of the early evolution of the earth. Because of its small mass, the moon stopped its internal activities very early. Therefore, the impact craters on the lunar surface and the accumulation profiles of the sputters in the crater record the impact history of small celestial bodies in the Earth Moon space. On the other hand, the strong impact also profoundly transformed the original lunar shell material. The material on the surface of the moon is often a mixture of sputters from different impact events, and some even come from areas hundreds or even thousands of kilometers away. Lin Yangting, a researcher at the Institute of Geology and Geophysics, Chinese Academy of Sciences, said that the shallow structure of the moon records the number and scale of large-scale impact events and magma eruptions, as well as their temporal and spatial relationships. Although the shallow structure of the moon is so important, so far, the understanding of the fine structure of the moon’s shallow layer is still very limited. < / P > < p > “the modification of lunar surface material by small celestial body impact has a direct impact on the results of lunar exploration and landing inspection, and involves the implementation of future lunar sampling and return missions.” Said Lin Yang ting. Privacy Policy