Blood Music is a science fiction novel by Greg Bear (ISBN 0-7434-4496-5). It was originally published as a short story in 1983, winning the 1983 Nebula Award for best novelette and the 1984 Hugo Award in the same category. Greg Bear published an expanded version in novel form in 1985. The completed novel was nominated for the Nebula Award for Best Novel in 1985 and the Hugo Award for Best Novel in 1986. Blood Music deals with themes including biotechnology, nanotechnology (including the grey goo hypothesis), the nature of consciousness and of artificial intelligence.