A deep-sea robot is released onto the seafloor of the Mariana Trench, reaching a depth of 10,666 meters. [Photo provided to China Daily] A team of Chinese scientists has developed a miniature 2.7 ...

A team of Chinese scientists has developed a miniature 2.7-kilogram deep-sea robot to explore the deepest natural frontier on Earth — the Mariana Trench in the western Pacific Ocean, according ...