Yesterday, the three Chinese taikonauts of the Shenzhou 17 mission returned to Earth after spending a little more than six months on the Chinese space station Tiangong. The three taikonauts Jiang Xinlin, Tang Hongbo, and Tang Shengjie had left the station about nine hours earlier to land at a site called Dongfeng in China’s Inner Mongolia Autonomous Region. It’s a procedure that significantly reduces the time to return to Earth and now has become routine.