Alastair Preston Reynolds (born 1966) is a British science fiction author. He specialises in dark hard science fiction and space opera. As of 2011 he has published over forty shorter works and nine novels. His works are hard science fiction veiled behind space opera and noir toned stories, and reflect his professional expertise with physics and astronomy, included by extrapolating future technologies in terms that are consistent, for the most part, with current science. Reynolds has said he prefers to keep the science in his books to what he personally believes will be possible, and he does not believe faster-than-light travel will ever be possible, but that he adopts science he believes will be impossible when it is necessary for the story. Most of Reynolds's novels contain multiple storylines that originally appear to be completely unrelated, but merge later in the story.