Shenzhou-21 astronauts complete first series of extravehicular activities Global TimesChinese astronauts inspect damaged Shenzhou 20 spacecraft during 8-hour spacewalk (video) SpaceChinese astronauts inspect debris-damaged Shenzhou-20 spacecraft during spacewalk SpaceNewsYou don’t launch an empty spacecraft by accident: China admits a serious issue aboard its space station futura-sciences.comShenzhou-21 astronauts install debris protection devices during first spacewalk news.cgtn.com
