Chemist Isaac Asimov was acclaimed for his fiction and nonfiction writing. As a Russian Jewish immigrant, Asimov told stories from an early age. Among the most celebrated is his Foundation Trilogy, which earned numerous awards and led him to become one of the most widely respected authors of the twentieth century. He expanded on some of his early ideas in novels and stories, including his beloved Robot novels. Asimov made science accessible and entertaining for everyone and is credited with popularizing "hard science fiction, " which attempts a realistic imagining of humans using science and technology within imaginary worlds and universes.