Marooned is a 1964 science fiction thriller novel by Martin Caidin, about a crewed spacecraft stranded in Earth orbit, oxygen running out, and only an experimental craft available to attempt a rescue. A film based on the novel led Caidin to prepare a revised version of it in 1968. The film was released in 1969, four months after the Apollo 11 mission, with the revised novel sold by book stores a few weeks earlier.