Tiangong space station open to world
Over the past 19 years, from China's first manned space mission Shenzhou V to the latest Shenzhou XV launch, the nation's space endeavors have progressed from a single-astronaut mission to the long-term stay of several astronauts in space. The number of astronauts one spaceship can carry has increased from one to three, and the length of time the astronauts stay in space has expanded from just 2