
The Earth is the cradle of humanity, but mankind cannot stay in the cradle forever. Konstantin Tsiolkovsky
Konstantin Eduardovich Tsiolkovsky (Russian: Константи́н Эдуа́рдович Циолко́вский; 17 September [O.S. 5 September] 1857 – 19 September 1935) was a Russian and Soviet rocket scientist who pioneered astronautic theory. Along with the Frenchman Robert Esnault-Pelterie, the Germans Hermann Oberth and Fritz von Opel, and the American Robert H. Goddard, he is one of the founding fathers of modern rocketry and astronautics.[2][3] His works later inspired leading Soviet rocket-engineersSergei Korolev and Valentin Glushko, who contributed to the success of the Soviet space program.

Categories: Quotes
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