Postmodern period, with its denial of reality, truth, and authority, has been associated with the rise of ethical relativism. While this relativistic understanding of ethics has been zealously embraced, it is also criticized because it is considered as a search of yet again an absolute code of ethics. As a result, arguments about the need and occurrence of a hybrid sense of ethics have been presented. It is possible to see the examples of such a hybrid sense of ethics in literature, particularly in the contemporary American science fiction literature. Science fiction does not hold a limit to its themes and dwells upon numerous ethical issues that arise in its fictional worlds. In these narrations, ethics become an essential tool for maintaining existence of humans, animals, nature, Earth, or the whole universe. In his regard, this book presents an interdisciplinary study of how the postmodern perception of ethics is reflected in contemporary American science fiction novels. It creates an intersection point of ethics, ethical literary analysis and science fiction, thus providing a wide range of discussions for its readers.