Astronauts for China's Shenzhou-18 space mission (L-R) Li Guangsu, Li Cong and Ye Guangfu wave during a departure ceremony before boarding a bus to take them to the Shenzhou-18 spacecraft at the Jiuquan Satellite Launch Centre in the Gobi desert in northwest China on April 25, 2024. (Photo by GREG BAKER / AFP) (Photo by GREG BAKER/AFP via Getty Images) *** BESTPIX ***