Lin Ling (R), a scientist who partook in China's fifth Arctic expedition, is greeted after returning to east China's Shanghai Municipality, Sept. 27, 2012. Chinese icebreaker Xuelong, or "Snow Dragon", returned to its Shanghai base on Thursday after wrapping up the country's fifth Arctic expedition, which kicked off from Qingdao in east China's Shandong Province on July 2 and lasted for 85 days. [Xinhua]