In terms of flight time, it takes 6 hours (four times around the earth) in the fast flight mode, and it takes 2 days to circle the earth 34 times in another mode. Earlier, Soyuz arrived at the International Space Station three hours later.

At present, there are two main means of transportation from the earth to the International Space Station, one is the Russian manned spacecraft Soyuz, and the other is the cargo spacecraft Progress.

It took only 6.5 hours for the Long March II carrier rocket to send the Shenzhou-12 spacecraft to the space station for autonomous docking.

Space station is also called space station, space station. It is a manned spacecraft, which runs in low-earth orbit for a long time and can be visited by many astronauts for a long time. Space stations are divided into single-module space stations and multi-module space stations.

Single-module space station can be launched into orbit by spacecraft at one time, while multi-module space station is assembled by spacecraft sending each module into orbit in batches. In the space station, there must be all facilities that can accommodate people, and the space station does not have the ability to return to Earth.