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Which Russian schoolteacher proposed exploring space by rocket in 1898?

Konstantin Tsiolkovsky, called the Father of Modern Astronautics.

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  1. Hermann Oberth
  2. Sergei Korolev
  3. Konstantin Tsiolkovsky ✔

Why: Tsiolkovsky, a Russian schoolteacher, worked out how rockets could reach space long before anyone built one. His careful research earned him the title Father of Modern Astronautics.

Huh, didn't know that: In 1903 he suggested liquid propellants so rockets could reach greater range.

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Why was the rocket scientist such a good teacher? His lessons really took off.
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References

Answer: Konstantin Tsiolkovsky. Tsiolkovsky, a Russian schoolteacher, worked out how rockets could reach space long before anyone built one. His careful research earned him the title Father of Modern Astronautics.

  1. NASA Glenn, Rocket History: 20th Century and Beyond www.grc.nasa.gov/www/k-12/rocket/BottleRocket/20thBeyond.htm
    In 1898, a Russian schoolteacher, Konstantin Tsiolkovsky (1857-1935), proposed the idea of space exploration by rocket.
    Checked 2026-10-10.

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