Korolev was once asked: “Who can guarantee that the Moon is solid?” The answer to this question could cost lives; no one wanted to take responsibility. And Korolev tore off a piece of newspaper and confidently wrote: “The moon is hard” and signed his name. He turned out to be right. This book will tell children about an amazing man, without whom the space victories of the USSR would not have been possible. Sergei Korolev was not only a talented designer, but also a brilliant manager, a leader who knew how to find an approach to people, keep his face in a stressful situation and take responsibility for others.