Tsiolkovsky was one of the first scientists who predicted flights into outer space and believed in the exploration of the Galaxy by earthlings in the near future. He devoted many of his works to the theme of cosmic discoveries and encounters with other worlds. The author's works include "Out of Earth", "The Will of the Universe", "Living Creatures in Space", "On the Moon", "Unknown Reasonable Forces", "Biology of Dwarfs and Giants" and "Life of the Universe". Content: How to protect fragile and delicate things from shocks and impacts The birth of life on Earth When the sun goes out The goals of stargazing Biology of dwarfs and giants Ethereal island Behind the Earth's Atmosphere Airships Four ways are worn over land and water Grief and genius Genius among people Monism of the universe The cause of space The will of the universe Planets are inhabited by living beings Unknown intelligent forces Creatures of different periods of evolution Scientific ethics Cosmic philosophy On the moon Dreams about the Earth and the sky On the West Living beings in space