Cai Xuzhe and Song Lingdong, part of China's three-person Shenzhou 19 mission, completed an 8.5-hour extravehicular activity ...

Two earlier attempts to retrieve the unit were unsuccessful. The device wasn't designed for spacewalk retrieval and it took Williams and Wilmore longer than had been planned to get the job done.

Two Chinese astronauts have completed the second spacewalk of their six-month-long mission in Earth orbit. Cai Xuzhe and Song Lingdong, part of China's three-person Shenzhou 19 mission ...