Among his well-known titles are Blood Music, Darwin's Radio and Darwin's Children, and The Forge of God. He has also written a book set in the Star Wars universe, Rogue Planet, and one in Isaac Asimov's Foundation universe, Foundation and Chaos. Bear has a reputation as a "hard" science fiction author, along with David Brin and Gregory Benford. The three of them are affectionatley known as the Killer B's. Bear is married to Astrid Anderson Bear, the daughter of science fiction author Poul Anderson.