NOVAفصل 18 افزودن تصویرشماره قسمت6Russian Right Stuff: The Invisible SpacemanOverviewThe three-part "Russian Right Stuff" begins by profiling Sergei Korolev, who pioneered the Soviet space program. Included: the historic Sputnik launches; the April 1961 orbital flight of Yuri Gagarin.Air dateFebruary 26, 1991Runtime (min)60