Crew members of the Shenzhou-13 spacecraft — Zhai Zhigang (C), Wang Yaping (R) and Ye Guangfu (L) — meet media at the Jiuquan Satellite Launch Center in Gansu Province on Thursday. The manned spaceship will be launched at 12:23 a.m. Saturday, taking the three astronauts into space for the construction of China’s space station. They will stay in space for about six months, the longest ever duration for Chinese astronauts.