China's research icebreaker Xuelong enters Antarctic Circle

Photo taken on Nov. 29, 2018 shows a penguin seen from China's research icebreaker Xuelong, also known as the Snow Dragon, in a floating ice area in Southern Ocean. The icebreaker is on China's 35th Antarctic research expedition and has entered the Antarctic Circle on Thursday and will carry out unloading operations the next day. (Xinhua/Liu Shiping)