This combo photo shows cross-polarized micrographs of different lunar soil particles displayed at an exhibition themed on lunar soil research achievements in University of Science and Technology of China, in Hefei, east China's Anhui Province on April 19, 2023. The exhibition starting Monday displays exhibits made by scientists, artists and engineers based on micrographs of lunar soil particles brought back by the Chang'e-5 probe. In 2020, China's Chang'e-5 mission retrieved samples from the moon weighing about 1,731 grams. (Xinhua)
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