SpaceWe could detect a malfunctioning warp drive on an alien starship Faster-than-light warp drives are theoretically possible to build, and if aliens are using them, we should be able to detect the gravitational waves produced when one goes wrong News
CommentMartin MacInnes: 'Science fiction can be many different things' The author of In Ascension, the latest pick for the New Scientist Book Club, on why he wrote his novel, cultivating a sense of wonder and the role of fiction in the world today Culture