Contestations over the meaning and practice of sexuality have become increasingly central to cultural self-definition and critical debates over issues of identity, citizenship and the definition of humanity itself. In an era when a religious authority can declare lesbians antihuman while some nations legalise same-sex marriage and are becoming increasingly tolerant of a variety of non-normative sexualities, it is hardly surprising that science fiction, in turn, takes up the task of imagining a diverse range of queer and not-so-queer futures. The essays in Queer Universes investigate both...