Chinese scientists begin 49th ocean expedition

Chinese research ship "Xiangyanghong 10" sets sail at Changzhi Island pier in Zhoushan of east China's Zhejiang Province, Dec. 6, 2017. "Xiangyanghong 10" departed on China's 49th ocean expedition Wednesday, with scientists onboard set to explore polymetallic sulphide deposits in the southwest and northwest Indian Ocean. The ship left Zhoushan carrying more than 200 personnel for a 250-day trip that will sail more than 25,000 nautical miles. (Xinhua/Yao Feng)