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and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system

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as well as aeronautics and aerospace research

and tend to be named differently because they are mainly white or have decorative plumes in breeding plumage

Space Stamp Valentina Terechkova Valeri Bykovski Vladimir Souvenir Sheet MNH melting ice Guiné-Bissau Dolphins Souvenir Sheet ofSoviet Spatial Exploration Space Astronaut Valeri Bykovski Valentina Souvenir Sheet Mint NH The Soviet space program (Russian: , Kosmicheskaya programma SSSR) comprised several of the rocket and space exploration programs conducted by the Soviet Union (USSR) from the 1930s until its collapse in 1991. Over its sixty year history, this primarily classified military program was responsible for a number of pioneering accomplishments in space flight,