Crew of icebreaker happy after returning to Shanghai

From building base to rescuing Russians, 159-day mission held challenges for China's Antarctic expedition

Wang Jianzhong could not hide his delight after finishing the 159-day scientific expedition in Antarctica.

"Seeing my family after months away is certainly a happy moment," said Wang, captain of the Chinese icebreaker Xuelong, or Snow Dragon, which arrived in Shanghai on Tuesday.