Orbital stations. Space elevator. Hovercraft trains. All these incredible ideas originated in the head of an ordinary school teacher who lived at the turn of the 19th and 20th centuries. A self-taught scientist without higher education, who became the founder of the Russian cosmonautics. “The Kaluga Sage”, who believed that the development of life on Earth would one day reach such a scale that it would make it possible to overcome the forces of gravity and colonize the Universe. Science fiction writer and supporter of the ideas of space exploration. A man whose name is undeservedly forgotten today. His works are the whole world. His name is Konstantin Eduardovich Tsiolkovsky. Welcome to the journey through the cosmos of his life.