On September 29, local time, the Russian "Soyuz MS-21" spacecraft separated from the International Space Station and returned to Earth carrying three Russian astronauts. At 13:57 on the same day (18:57 on the 29th, Beijing time), the spacecraft landed in the southeast of the suburb of Rezkazgan in Kazakhstan.

In addition, the spacecraft also carried space experiment results materials and a replica of the victory flag after it was displayed in outer space.