Description of the life and work of the great scientist of our century Edwin-Paul Hubble (1889–1953), the author of remarkable discoveries that determined the face of modern astronomy His research confirmed the concept of an island universe consisting of galaxy star systems similar to the galaxy in which we live. The main achievement of Hubble was the discovery of the law of red shift of lines in the spectra of distant galaxies, indicating the expansion of the universe. It is also told about the research that continued the Hubble case: about the theory of the hot Universe, about the physics of processes in the expanding Universe, the discovery of relic radiation, about the plans of new observations to clarify the picture of the structure and evolution of the Universe. When writing the biography of the scientist used a number of materials that have never been published before.