Here are 25 stories of science fiction that push the envelope, by the biggest names in an emerging new crop of high-tech futuristic SF - including Charles Stross, Robert Reed, Alastair Reynolds, Peter Hamilton and Neal Asher. High-tech SF has made a significant comeback in the last decade, as bestselling authors successfully blend the super-science of 'hard science fiction' with real characters in an understandable scenario. It is perhaps a reflection of how technologically controlled our world is that readers increasingly look for science fiction that considers the fates of mankind as a result of increasing scientific domination. This anthology brings together the most extreme examples of the new high-tech, far-future science fiction, pushing the limits way beyond normal boundaries. The stories include: "A Perpetual War Fought Within a Cosmic String", "A Weapon That Could Destroy the Universe", "A Machine That Detects Alternate Worlds and Creates a Choice of Christs", "An Immortal Dead Man Sent To The End of the Universe", "Murder in Virtual Reality", "A Spaceship So Large That There is An Entire Planetary System Within It", and "An Analytical Engine At The End of Time", and "Encountering the Untouchable."

An anthology focusing on newer elements of steampunk, one which deconstructs the staples of the genre and expands on them, rather than simply repeating them, with a greater spread both in terms of location and character. This is steampunk with a modern, post-colonial sensibility. Contributors include: Jeff VanderMeer, Caitlín Kiernan, Mary Robinette Kowal, Jay Lake, Cherie Priest, Cat Rambo, Catherynne M. Valente, Genevieve Valentine and many more.

The Golden Age of Science Fiction, from the early 1940s through the 1950s, saw an explosion of talent in SF writing, including authors such as Isaac Asimov, Robert A. Heinlein, and Arthur C. Clarke. Their writing helped science fiction gain wide public attention, and left a lasting impression upon society. The same writers formed the mold for the next three decades of science fiction, and much of their writing remains as fresh today as it was then.

This encyclopedia is the most up-to-date, concise, clear and affordable guide to all aspects of science fiction, from its background to generic themes and devices, from authors (established and new) to films. Science fiction has evolved into one of the most popular, cutting-edge and exciting fiction geners, with a proliferation of modern and classic authors, themes and ideas, movies, TV series and awards. Arranged in an A-Z format, and featuring a comprehensive index and cross-referencing system, The Mammoth Encyclopedia of Science Fiction is also the most accessible and easy to use encyclopedia of its kind currently available.

The art of writing great science fiction is that it challenges the imagination, pushing it to extreme limits and in this anthology, selecting some of the best modern science fiction from the last fifty years, twenty leading authors of the genre ask the question 'What if...?' and then give their own very personal views of the changes and surprises which may befall humanity in the centuries to come. In Ulla, Ulla Eric Brown recounts the first manned Martian expedition and discovers that H. G. Wells may have been right after all. In The Infinite Assassin Greg Egan polices the dimensions, seeking those who are taking over their alternate selves. Geoffrey A. Landis takes us into the depths of a black hole in Approaching Perimelasma. Is the ultimate Utopia heaven or hell? Robert Sheckley finds out in the classic A Ticket to Tranai. These and other stories by James White, Eric Frank Russell, Robert Reed, H. Beam Piper and H. Chandler Elliot make this one of the most entertaining and thought-provoking science fiction anthologies in lightyears.