Mir-2
| One concept of Mir-2 | |
| Station statistics | |
|---|---|
| Crew | 2-3, up to 6 (two longstay typical) | 
| Mission status | Canceled, project converted into International Space Station | 
| Mass | 90,000 kg | 
| Length | 59.3 m | 
| Width | 36.2 m | 
| Height | 17.7 m | 
| Periapsis altitude | 350 km (220 mi) | 
| Apoapsis altitude | 450 km (280 mi) | 
| Orbital inclination | 64.8 deg | 
Mir-2 was a Soviet space station project which began in February 1976. Some of the modules built for Mir-2 have been incorporated into the International Space Station (ISS). The project underwent many changes, but was always based on the DOS-8 base block space station core module, built as a back-up to the DOS-7 base block used in the Mir station. The DOS-8 base block was eventually used as the Zvezda module of the ISS. Its design lineage extends back to the original Salyut stations.