A boy holds up a model of Chinese research icebreaker Xuelong among the welcoming crowds in Shanghai on Thursday. Xuelong, or Snow Dragon, returned to Shanghai that same day after a 160-day voyage as part of the country’s 42nd Antarctic expedition, during which it covered over 34,000 nautical miles. The 550-member team, supported by routine supplies exceeding 3,600 tons, set new records in both personnel scale and mission scope. Xinhua