This photo taken on April 19, 2023 shows focus stacking micrographs of 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. 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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