RT @NASAhistory: #OTD in 1986, 1st part of Mir Space Station launched. Operational from 1986 to 2001. Russia’s 8th space station. https://t.co/K68FwZw5GL
RT @NASAhistory: #OTD in 1986, 1st part of Mir Space Station launched. Operational from 1986 to 2001. Russia’s 8th space station. https://t.co/K68FwZw5GL