Xiangyanghong 09, carrier of Jiaolong, China's first manned deep-sea submersible, sets sail from Fuzhou, capital of southeast China's Fujian Province, for the submersible's first expedition mission in the 2014-2015 period, July 4, 2014. Jiaolong on Friday embarked on a scientific expedition in the Pacific Ocean. It is scheduled for 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/Wei Peiquan)