The novel 'The Andromeda Nebula' (1957) is a classic of Russian science fiction, a book about a wonderful world of the distant future, the 'World of the Great Ring,' populated by bold, courageous people conducting risky scientific experiments and dangerous interplanetary journeys. Despite the perfection of the world created by the writer's imagination—where people live long and happily, work passionately, where science and art flourish, where no one hides their feelings—there are flaws in this perfect world. It turns out that happiness lies not only in living without worries; happiness lies in searching, in mistakes, in doubts, in dreams. The novel 'The Andromeda Nebula' was written over 60 years ago; many of the writer's scientific predictions have come true, others may yet come true, and although the idea of ​​a bright communist future has sunk into oblivion, the book remains relevant both in Russia and around the world.