Russia stamp 2007
50th Anniversary of Space,
Konstantin Tsiolkovsky 1857-1935 - 20 F
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Konstantin Eduardovich Tsiolkovsky (1857 – 1935) was an Imperial Russian and Soviet rocket scientist and pioneer of the astronautic theory. Along with his followers the German Hermann Oberth and the American Robert H. Goddard, he is considered to be one of the founding fathers of rocketry and astronautics.
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