Chinese and Chilean scientists have reached the bottom of the Atacama Trench, where light does not penetrate, in what they called the “most ambitious” deep-sea expedition ever conducted in the eastern Pacific. The joint mission to one of the deepest ocean trenches – which runs parallel to the coasts of Peru and Chile – took place from January 19 to March 5. It comes as Chile’s expanding cooperation with China on science and technology has inflamed geopolitical tensions with the United...