Deep-sea research submersible:

Deep-sea manned submersible Jiaolong returned to its homeport of Qingdao, east China’s Shandong Province, on July 13 after a 94-day scientific expedition to the Yap Trench and the Mariana Trench in the Pacific Ocean. During this expedition, the submersible descended as far as 6,796 meters. Jiaolong ventured down to a record depth of 7,062 meters in 2012. During its latest exploration, it filmed video and took samples from a mud volcano in the Mariana Trench. The submersible’s findings, which show the prevalence of cobalt in the local seabed, will support China’s identification of areas suitable for future deep-sea prospecting. ( Compiled by Beijing Review)