Photo taken by Jiaolong, China's first manned deep-sea submersible, shows its onboard micro-sized remotely operated underwater vehicle while working under sea in the northwest Pacific Ocean, July 16, 2014. The submersible has launched a voyage in the northwest Pacific Ocean, during which it will research cobalt-rich crusts and life forms inhabiting the bottom of the sea. (Xinhua/China Ocean Mineral Resources R&D Association) |