Sooner or later, people will have to look for and develop habitable worlds outside the Earth. Michio Kaku's new book is one of the first attempts to map out the greatest migration in human history. The author, a well-known popularizer of science, examines the history of the issue, technical aspects and options for future space colonization, writes about tasks that have not yet been solved, from the colonization of Mars and the construction of filling stations on Oort cloud comets to superluminal flights across the Galaxy, meetings with alien intelligence and gaining immortality as a condition for mastering the universe. These ideas excite society, Elon Musk, Jeff Bezos, Sergey Brin and other captains of new technologies are passionate about them, investing in solving the problems of the near and distant future. And undoubtedly, they can be considered as an integral part of the modern worldview, to the formation of which Michio Kaku makes a valuable contribution.