The Chang 'e V returner successfully returned to Earth with 1,731 grams of lunar samples.

The Chang 'e-5 probe brought the collected lunar samples back to Earth, which was the first time that the samples of extraterrestrial objects in China were returned. It was also the first time that human beings brought the lunar samples back to Earth after a lapse of 44 years, making China the third country in the world to retrieve samples from the moon. The country officially handed over the moon samples of the Chang 'e-5 mission to the Chinese Academy of Sciences, which is not only a lofty honor, but also a major responsibility entrusted to the Chinese Academy of Sciences.

A large team discovered some rare minerals in lunar soil, such as apatite, Shi Ying, cristobalite and orthopyroxene. This shows that the lunar soil of Chang 'e-5 may contain a very small amount of materials from the lunar highlands, which provides a ground truth reference for interpreting the spectral remote sensing data of the northern part of the storm ocean where Chang 'e-5 landed, and provides a new perspective for understanding the deep and surface evolution history of the moon in this area.

lunar development

lunar soil is located at the top of the moon, which is the focus of sampling for Chang' e-5 probe. The lunar soil is completely different from the earth's soil. The soil on the surface is the material formed by the weathering of surface rocks, such as wind, frost, rain and snow, which are broken into sand grains, and these sand grains are mixed with the organic matter of dead organisms. However, the lunar soil is mainly caused by the impact of asteroids on the lunar surface and the weathering of temperature difference in vacuum.

Studying these lunar soils, on the one hand, can reveal the details of meteorite impact events that happened on the moon, on the other hand, it can reveal the process of space weathering (destructive effects of temperature, solar wind, cosmic rays, etc.) of materials in space, and prepare for interstellar buildings and equipment to resist space weathering.

In addition, the finer lunar dust is easy to float. Under the condition of the moon, the floating of lunar dust will lead to astronauts' blurred vision, pollution of detector optical components, decline of energy and thermal control system, mechanical wear and failure, etc. Studying these substances can provide dust-proof schemes for future lunar exploration and lunar base construction.

lunar soil and lunar dust may be a very good dust substance, which can be used for 3D printing or directly used as building materials. By studying them deeply, we may be able to design the corresponding technology to speed up the construction of the lunar base.

We may have to wait for the establishment of the lunar base before we put forward the demand for lunar mining. Before that, the research on lunar soil will undoubtedly contribute to the early construction of the base.