China’s New Dark Matter Lab Is Biggest and Deepest Yet
Some 2,400 metres below the Jinping Mountains in southwest China, the world’s deepest and largest underground laboratory has just opened. The enormous space is home to scientists who are hunting down dark matter — the hypothetical substance that is thought to make up more than 80% of the mass in the Universe.The China Jinping Underground Laboratory (CJPL) opened in 2010 and, after three years of construction, its second phase, CJPL-II, became operational in December 2023. With a sprawling capacity of 330,000 cubic metres,…