Konstantin Eduardovich Tsiolkovsky

Konstantin Eduardovich Tsiolkovsky, born in Izhevskoe, Russia, in 1857, was the earliest theorist of spaceflight, publishing in 1903.

Konstantin Eduardovich Tsiolkovsky

Tsiolkovsky was probably the first person to realize the rocket was the means to travel into space, and the first to work out many essential principles. Deaf since childhood, he became a high school mathematics teacher. He theorized about airships and rockets beginning in the late 1800s and published his spaceflight ideas in Russian as early as 1903. Along with Hermann Oberth and Robert Goddard, he is recognized as one of the three great theoreticians of spaceflight.

The communist government that emerged in Russia in 1917 eventually proclaimed Tsiolkovsky as the father of Soviet rocket technology.

Credit: National Air and Space Museum, Smithsonian Institution

Photo Number: SI 78-2461

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Konstantin Eduardovich Tsiolkovsky

Konstantin Eduardovich Tsiolkovsky