13 April 2022
Research teams from the Chinese Academy of Sciences have published their latest findings from research on CE-5 lunar samples. Using the serial analysis method, researchers obtained space weathering information of silicates, oxides, phosphates and sulfides on the surface from a single basaltic clast of the CE-5 sample. The paper said micrometeorite impact and solar wind irradiation, the dominant space weathering processes, largely modified the composition and microtexture of soil materials on the Moon. The CE-5 mission returned lunar soil samples from a middle latitude (43.06°N) while all Apollo and Luna missions landed in a narrow and low range of lunar latitude.
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link to paper