Yang Liwei: astronauts need to screw more than 1000 screws. Nie Haisheng dyed his white hair black before going on the expedition

According to the news on June 18, Yang Liwei, deputy chief designer of China's manned space project, introduced at the launching ceremony of the network theme publicity and interactive guidance activity of "writing the chapter of youth on the motherland" that day. Nie Haisheng, a 57 year old astronaut of Shenzhou 12, specially dyed his white hair black on his temples before going on the expedition. Yang Liwei also revealed that the first three astronauts to enter the core module will undertake the important work of designing and building the "space home", and more than 1000 screws will be screwed.