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In page Konstantin Tsiolkovsky:
"Although many called his ideas impractical,[1]:8,117 Tsiolkovsky influenced later rocket scientists throughout Europe, like Wernher von Braun. Soviet search teams at Peenemünde found a German translation of a book by Tsiolkovsky of which "almost every page...was embellished by von Braun's comments and notes."[1]:27 Leading Soviet rocket-engine designer Valentin Glushko and rocket designer Sergey Korolev studied Tsiolkovsky's works as youths,[1]:6–7,333 and both sought to turn Tsiolkovsky's theories into reality.[1]:3,166,182,187,205–206,208 In particular, Korolev saw traveling to Mars as the more important priority,[1]:208,333,337 until in 1964 he decided to compete with the American Project Apollo for the Moon.[1]:404
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