PHOTO / CHINA
China's ultra-large neutrino detector starts operation to find "ghost particles"
By Xinhua Published: Aug 27, 2025 12:48 PM
Researchers work at a control room of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Aug. 26, 2025. The world's largest transparent spherical detector began operation in China on Tuesday, making it the world's first operational ultra-large scientific facility dedicated to neutrino research with ultra-high precision. Having completed the filling of its 20,000-tonne liquid scintillator detector, JUNO in Guangdong began taking data after more than a decade of preparation and construction. (Photo by Liu Yuexiang/Xinhua)

Researchers work at a control room of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Aug. 26, 2025. The world's largest transparent spherical detector began operation in China on Tuesday, making it the world's first operational ultra-large scientific facility dedicated to neutrino research with ultra-high precision. Having completed the filling of its 20,000-tonne liquid scintillator detector, JUNO in Guangdong began taking data after more than a decade of preparation and construction. (Photo by Liu Yuexiang/Xinhua)


 
Researchers work at a control room of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong This photo taken on Dec. 16, 2024 shows the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province. (Xinhua/Jin Liwang)

Researchers work at a control room of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong This photo taken on Dec. 16, 2024 shows the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province. (Xinhua/Jin Liwang)


 
This photo taken on Nov. 22, 2024 shows the acrylic sphere of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province. (Xinhua/Jin Liwang)

This photo taken on Nov. 22, 2024 shows the acrylic sphere of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province. (Xinhua/Jin Liwang)


 
Staff members work on a stainless steel truss of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024.(Xinhua/Jin Liwang)

Staff members work on a stainless steel truss of the central detector of the Jiangmen Underground Neutrino Observatory (JUNO) in Jiangmen, south China's Guangdong Province, Oct. 10, 2024.(Xinhua/Jin Liwang)