Space Stations, Soviet/Russian

1. Salyut 1 (1971) - First space station, equipped for scientific studies.
2. Salyut 2 (1973) - Military reconnaissance platform; suffered explosion after achieving orbit.
3. Kosmos 557 (1973) - Scientific station; crippled after achieving orbit.
4. Salyut 3 (1974) - Military reconnaissance platform.
5. Salyut 4 (1974) - Scientific station; operated until its systems were exhausted.
6. Salyut 5 (1976) - Military reconnaissance platform.
7. Salyut 6 (1977) - First second-generation Salyut, operated as a highly successful scientific station.
8. Salyut 7 (1982) - Follow-up to Salyut 6, had to be repeatedly rescued.
9. Mir (1986) - First modular space station, used for more than a decade.