Tiangong-3
| Station statistics | |
|---|---|
| Crew | 3 | 
| Mission status | Cancelled | 
| Mass | 22,000 kilograms (49,000 lb) | 
| Length | 18.1 meters (59 ft) | 
| Diameter | 4.2 meters (14 ft) | 
Tiangong-3 (Chinese: 天宫三号; pinyin: Tiāngōng sānhào; lit. 'Heavenly Palace 3') was a proposed Chinese space station, part of the Tiangong program. The China National Space Agency (CNSA) was originally expected to launch Tiangong-3 around 2015, following the launch of the Tiangong-2 test laboratory, originally planned for 2013. The goals for the Tiangong-2 and Tiangong-3 laboratories were merged, and the latter was therefore not ordered. The first module of the third station of the Tiangong program, Tiangong space station, was eventually launched in 2021.