BEIJING, Dec. 21 (Xinhua) -- The Shenzhou-17 crew members on board China's orbiting space station completed their first spacewalk at 9:35 p.m. (Beijing Time) on Thursday, according to the China Manned Space Agency. Tang Hongbo, Tang Shengjie and Jiang Xinlin worked seven-and-a-half hours to complete set tasks such as a... read full story