Astronauts Nie Haisheng (C), Liu Boming (R) and Tang Hongbo are out of the return capsule of the Shenzhou-12 spaceship at the Dongfeng landing site in north China's Inner Mongolia Autonomous Region on Sept. 17, 2021. Three Chinese astronauts, the first sent to orbit for space station construction, have completed their three-month mission and returned to Earth safely on Friday. (Xinhua/Lian Zhen)