relishinrussia:

Konstantin Tsiolkovsky (1857-1935), pioneer of astronautics. Derived the Tsiolkovsky rocket equation and made a significant contribution to the Soviet Space Program; in addition to his exploration of the earth sciences and biology.

relishinrussia:

Konstantin Tsiolkovsky (1857-1935), pioneer of astronautics. Derived the Tsiolkovsky rocket equation and made a significant contribution to the Soviet Space Program; in addition to his exploration of the earth sciences and biology.

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