Konstantin Tsiolkovsky · 1933 | ChronoCite

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Jan 1, 1933Documented record75% confidence

Konstantin Tsiolkovsky

“Planets are Inhabited by Living Creatures”

Wikiquote (en)Trusted source1 sourceLive source Archived

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Captured 2026-08-16 from Wikiquote (en). The archived copy is preserved so this citation survives link rot.

Konstantin Tsiolkovsky · 1933 | ChronoCite