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Photo taken on April 22, 2023 shows detectors in China's Large High Altitude Air Shower Observatory (LHAASO) project in Daocheng, southwest China's Sichuan Province. (Photo: China News Service/Sun Zifa)
China's LHAASO passed national acceptance procedures on Wednesday. It will offer a perspective on revealing the origin of cosmic rays.
![](http://www.ecns.cn/hd/2023/05/11/b46587d8b0574c30bb4bc3dded44441c.jpg)
Photo taken on April 22, 2023 shows detectors in China's Large High Altitude Air Shower Observatory (LHAASO) project in Daocheng, southwest China's Sichuan Province. (Photo: China News Service/Sun Zifa)
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Photo taken on April 22, 2023 shows the observatory deck in China's Large High Altitude Air Shower Observatory (LHAASO) project in Daocheng, southwest China's Sichuan Province. (Photo: China News Service/Sun Zifa)
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A scientist introduces the construction of China's Large High Altitude Air Shower Observatory (LHAASO) project in Daocheng, southwest China's Sichuan Province. (Photo: China News Service/Sun Zifa)
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A scientist works at a control room of China's Large High Altitude Air Shower Observatory (LHAASO) project in Daocheng, southwest China's Sichuan Province. (Photo: China News Service/Sun Zifa)