CASC - Long March 2F - Shenzhou 21 - Site 901 - Jiuquan Satellite Launch Center - Space Affairs Live

Shenzhou 21 (Chinese: 神舟二十号; pinyin: Shénzhōu èrshí-hào; lit. 'Divine Boat Number 21') is a planned Chinese spaceflight to the Tiangong space station, expected to launch on October 31, 2025. It will carry three taikonauts on board a Shenzhou spacecraft. The mission will be the 16th crewed Chinese spaceflight and the 21th flight overall of the Shenzhou program. The launch is scheduled for October 31, 2025, 23:44 CST, 1544 UTC, 16:44 CET from Site 901 (SLS-1) from Jiuquan Satellite Launch Center on board a Long March 2F rocket. The Shenzhou spacecraft will dock with the forward docking port on the Tianhe core module of the station, where the crew will enter and take over operations from the departing crew of Shenzhou 20. The crew names will be released on the day of the lift-off. Commander: TBD Operator: TBD Science Operator: TBD Mission type: Tiangong space station crew transport Operator: China Manned Space Agency (CMSA) Mission duration: 180 days (planned) Spacecraft properties Spacecraft type: Shenzhou Manufacturer: China Aerospace Science and Technology Corporation Launcher System: Long March 2F Manufacturer: China Academy of Launch Vehicle Technology (CALT) Country of origin: China Size: Height: 62 m (203 ft) Diameter: 3.35 m (11.0 ft) Mass: 464,000 kg (1,023,000 lb) Stages: 2 Boosters: No. boosters: 4 Height: 15.3 m (50 ft) Diameter: 2.3 m (7 ft 7 in) Empty mass: 3,200 kg (7,100 lb) Gross mass: 41,000 kg (90,000 lb) Powered by: 1 YF-20B per booster Maximum thrust: 814 kN (183,000 lbf) Total thrust: 3,256 kN (732,000 lbf) Specific impulse: 291 s (2.85 km/s) Burn time 128 seconds Propellant: N2O4 / UDMH First stage Height: 23.7 m (78 ft) Diameter: 3.4 m (11 ft) Empty mass: 9,500 kg (20,900 lb) Gross mass: 196,500 kg (433,200 lb) Powered by: 4 YF-20B Maximum thrust: 3,256 kN (732,000 lbf) Specific impulse: 291 s (2.85 km/s) Burn time: 166 seconds Propellant: N2O4 / UDMH Second stage Height: 13.5 m (44 ft) Diameter: 3.4 m (11 ft) Empty mass: 5,500 kg (12,100 lb) Gross mass: 91,500 kg (201,700 lb) Powered by: 1 YF-24B Maximum thrust: 831 kN (187,000 lbf) Specific impulse: 289 s (2.83 km/s) Burn time: 300 seconds Propellant: N2O4 / UDMH