In the early 1980s, NASA planned to launch a modular space station called Freedom as a counterpart to Mir, while the Soviets were planning to construct Mir-2 in the 1990s as a replacement for the station.
NASA je na početku 1980-ih planirala izgradnju modularne postaje Freedom kao odgovor na sovjetske Saljutove i Mir dok su Sovjeti za 1990-te planirali Mir-2.