On the evening of 2 December, the Chinese Space Station officially launched a permanent presence model, with two teams handing over keys from China’s Space Station. Fourteen teams completed all of the established tasks and, on 4 December, the Boeing XIV boat returned to a seamless landing site in the east, ending 183 days of “space missions”. As the “troika of the most busy three”, the Group created a number of “firsts” in half a year, which witnessed many historical moments in Chinese manned...