Live: How crucial is a spacewalk for space exploration?

Extravehicular activity (EVA) is also known as a spacewalk. Taikonauts Nie Haisheng, Liu Boming and Tang Hongbo have been living and working in the core module of China's space station for over two months. #SpaceChina #Shenzhou12

What work did they perform during their second spacewalk this Friday? What are the major challenges during the spacewalk? How important is this EVA to the space station construction and further exploration? Join CGTN's Wu Lei to discuss the spacewalk with domestic and global experts and find out more!

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