By Ling Xin
High on the Tibetan Plateau, China has completed a cutting-edge telescope designed to detect ripples in spacetime from the dawn of the universe with the help of the United States – strengthening a global effort to probe how everything began.
The Ali Cosmic Microwave Background Polarisation Telescope (AliCPT), perched at 5,250 metres (17,220 ft) in Tibet’s remote Ali prefecture, was finished this month after eight years of construction involving 16 institutions worldwide, including Stanford…