* Astronomy

China's sixth Arctic expedition team aboard icebreaker Xuelong has returned to its home port

China's sixth Arctic expedition team aboard icebreaker Xuelong, or "Snow Dragon," has returned to its home port in eastern China's Shanghai after a two-and-a-half-month mission.
Xuelong set out from Shanghai on July 11 and has since travelled some 22,000 km to explore key areas such as the Bering Sea, the Chukchi Sea and the Canada Basin.
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