| Mission type | Tiangong space station crew transport |
|---|---|
| Operator | China Manned Space Agency |
| Mission duration | 180 days (planned) |
| Spacecraft properties | |
| Spacecraft type | Shenzhou |
| Manufacturer | China Aerospace Science and Technology Corporation |
| Crew | |
| Crew size | 3 |
| Members | TBA |
| Start of mission | |
| Launch date | October 2025(planned) |
| Rocket | Long March 2F |
| Launch site | Jiuquan, LA-4/SLS |
| Contractor | China Academy of Launch Vehicle Technology |
| End of mission | |
| Landing date | 2026 (planned) |
| Landing site | Inner Mongolia, China |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Inclination | 41.5° |
| Docking with Tiangong space station | |
| Docking port | Tianhe Nadir |
| Docking date | October 2025 (planned) |
| Undocking date | 2026 (planned) |
| Time docked | 180 days (planned) |
Shenzhou 21 (Chinese: 神舟二十一号; pinyin: Shénzhōu èrshíyī-hào; lit. 'Divine Boat Number 21') is a planned Chinese spaceflight to the Tiangong space station, expected to launch in October 2025.[1] It will carry three taikonauts on board a Shenzhou spacecraft. The mission will be the 16th crewed Chinese spaceflight and the 21st flight overall of the Shenzhou program.