Charles Babbage perfects his Analytical Engine and the computer age arrives a century ahead of its time. And three extraordinary characters race toward a rendezvous with history - and the future: Sybil Gerard - dishonored woman and daughter of a Luddite agitator; Edward "Leviathan" Mallory - explorer and paleontologist; Laurence Oliphant - diplomat and spy. Their adventure begins with the discovery of a box of punched Engine cards of unknown origin and purpose. Cards someone wants badly enough to kill for...Part detective story, part historical thriller, The Difference Engine is the first collaborative novel by two of the most brilliant and controversial science fiction authors of our time. Provocative, compelling, intensely imagined, it is a startling extension of Gibson's and Sterling's unique visions - in a new and totally unexpected direction!

    This brilliant collection, often cited as the first of its kind, explores fundamental questions about ourselves and our treatment of the universe (and other beings) around us and ultimately what it means to be human.Contents: * Cordwainer Smith: The Shaper of Myths (1975) • essay by John J. Pierce [as by J. J. Pierce] * The Instrumentality of Mankind (timeline) (1975) • essay by John J. Pierce * Scanners Live in Vain [The Instrumentality of Mankind] (1950) / novelette by Cordwainer Smith: meet Martel, a human altered to be part machine-a scanner-to be able withstand the trauma space travel has on the body. Despite the stigma placed on him and his kind, he is able to regrasp his humanity to save another; Fantasy Book #6 ’50 * The Lady Who Sailed The Soul [The Instrumentality of Mankind] (1960) / novelette by Cordwainer Smith, Genevieve Linebarger; Galaxy Apr ’60 * The Game of Rat and Dragon [The Instrumentality of Mankind] (1955) / short story by Cordwainer Smith; Galaxy Oct ’55 * The Burning of the Brain [The Instrumentality of Mankind] (1958) / short story by Cordwainer Smith; If Oct ’58 * Golden the Ship Was - Oh! Oh! Oh! [The Instrumentality of Mankind] (1959) / short story by Cordwainer Smith, Genevieve Linebarger; Amazing Apr ’59 * The Crime and the Glory of Commander Suzdal [The Instrumentality of Mankind] (1964) / short story by Cordwainer Smith; Amazing May ’64 * The Dead Lady of Clown Town [The Instrumentality of Mankind] (1964) / novella by Cordwainer Smith: get to know the underpeople-animals genetically altered to exist in human form, to better serve their human owners-and meet D'Joan, a dog-woman who will make readers question who is more human: the animals who simply want to be recognized as having the same right to life, or the people who created them to be inferior; Galaxy Aug ’64 * Under Old Earth [The Instrumentality of Mankind] (1966) / novelette by Cordwainer Smith; Galaxy Feb ’66 * Mother Hitton's Littul Kittons [The Instrumentality of Mankind] (1961) / novelette by Cordwainer Smith; Galaxy Jun ’61 * Alpha Ralpha Boulevard [The Instrumentality of Mankind] (1961) / novelette by Cordwainer Smith; Galaxy Jun ’61 * The Ballad of Lost C'mell [The Instrumentality of Mankind] (1962) / novelette by Cordwainer Smith: the notion of love being the most important equalizer there is, is put into action when an underperson, C'mell, falls in love with Lord Jestocost. Who is to say her love for him is not as valid as any true-born human? She might be of cat descent, but she is all woman!; Galaxy Oct ’62 * A Planet Named Shayol [The Instrumentality of Mankind] (1961) / novelette by Cordwainer Smith: it is an underperson of bull descent, and beings so mutilated and deformed from their original human condition to be now considered demons of a hellish land, who retain and display the most humanity when Mankind commits the most inhumane action of all; Galaxy Oct ’61aka: Paul M. A. Linebarger, Paul Myron Anthony Linebarger, Paul Linebarger, Felix C. Forrest, Carmichael Smith, Kordvejner Smit..

    Earth has been dominated for 1,000 years by an alien invader—and man is an endangered species. From the handful of surviving humans a courageous leader emerges—Jonnie Goodboy Tyler, who challenges the invincible might of the alien Psychlo empire in a battle of epic scale, danger and intrigue with the fate of the Earth and of the universe in the tenuous balance.

    Now Schoken Associates, one of the big players, has a new challenge for star copywriter Mitch Courtenay. Volunteers are needed to colonise Venus. It's a hellhole, and nobody who knew anything about it would dream of signing up. But by the time Mitch has finished, they will be queuing to get on board the spaceships.Biographical NotesPohl and Kornbluth started writing together as early as 1940, although both authors produced a wide variety of stories separately, under their own names and pseudonyms.Each wrote sections, starting where the other left off, and through long experience they developed an almost telepathic awareness of each other's intentions.

    This reborn civilization is one in which every individual is incorporated at birth, and spends many years trying to attain control over his or her own life by getting a majority of his or her own shares. Life extension has made life very long indeed.Now the incredible has happened: a billionaire businessman from our time, frozen in secret in the early twenty-first century, is discovered and resurrected, given health and a vigorous younger body. Justin Cord is the only unincorporated man in the world, a true stranger in this strange land. Justin survived because he is tough and smart. He cannot accept only part ownership of himself, even if that places him in conflict with a civilization that extends outside the solar system to the Oort Cloud.  People will be arguing about this novel and this world for decades.

    But the journey has a terrible cost. It alters not only the future but the "present" in which we live.A century after the publication of H. G. Wells' immortal The Time Machine, Stephen Baxter, today's most acclaimed new "hard SF" author, and the acknowledged Clarke, returns to the distant conflict between the Eloi and the Morlocks in a story that is at once an exciting expansion, and a radical departure based on the astonishing new understandings of quantum physics.

    Clarke In a moving story of sacrifice and triumph, human scientists establish a relationship with intelligent lifeforms--the cheela--living on Dragon's Egg, a neutron star where one Earth hour is equivalent to hundreds of their years. The cheela culturally evolve from savagery to the discovery of science, and for a brief time, men are their diligent teachers.Praise for Dragon's Egg"Bob Forward writes in the tradition of Hal Clement's Mission of Gravity and carries it a giant step (how else?) forward."--Isaac Asimov "Dragon's Egg is superb. I couldn't have written it; it required too much real physics."--Larry Niven "This is one for the real science-fiction fan."--Frank Herbert"Robert L. Forward tells a good story and asks a profound question. If we run into a race of creatures who live a hundred years while we live an hour, what can they say to us or we to them?"--Freeman J. Dyson"Forward has impeccable scientific credentials, and . . . big, original, speculative ideas."--The Washington Post

    There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all. On the eve of Armageddon, with the entire galaxy at war, seven pilgrims set forth on a final voyage to Hyperion seeking the answers to the unsolved riddles of their lives. Each carries a desperate hope—and a terrible secret. And one may hold the fate of humanity in his hands.

    This is the first Ace printing.Cover Artist: Robert AdragnaContents:1 • The Eyes Have It • [Lord Darcy] • (1964) • novelette by Randall Garrett 63 • A Case of Identity • [Lord Darcy] • (1964) • novella by Randall Garrett 158 • The Muddle of the Woad • [Lord Darcy] • (1965) • novella by Randall Garrett 243 • A Stretch of the Imagination • [Lord Darcy] • (1973) • short story by Randall Garrett These four stories were first collected in this volume in 1979.

    Tom, a contemporary historian, and his theoretical physicist girlfriend Sharon, become interested. Tom indeed becomes obsessed. By all logic, the town should have survived, but it didn't and that violates everything Tom knows about history. What's was special about Eifelheim that it utterly disappeared more than 600 years ago? Father Dietrich is the village priest of Oberhochwald, the village that will soon gain the name of Teufelheim, in later years corrupted to Eifelheim, in the year 1348, when the Black Death is gathering strength across Europe but is still not nearby. Dietrich is an educated man, knows science and philosophy, and to his astonishment becomes the first contact between humanity and an alien race from a distant star when their interstellar ship crashes in the nearby forest. It is a time of wonders, in the shadow of the plague.Tom and Sharon, and Father Dietrich, have a strange and intertwined destiny of tragedy and triumph in this brilliant SF novel by the winner of the Robert A. Heinlein Award.

    Preserve the knowledge.Survive at all costs.Take them to the stars.Over 99 identical generations, Mia’s family has shaped human history to push them to the stars, making brutal, wrenching choices and sacrificing countless lives. Her turn comes at the dawn of the age of rocketry. Her mission: to lure Wernher Von Braun away from the Nazi party and into the American rocket program, and secure the future of the space race. But Mia’s family is not the only group pushing the levers of history: an even more ruthless enemy lurks behind the scenes.A darkly satirical first contact thriller, as seen through the eyes of the women who make progress possible and the men who are determined to stop them...

    When Daniel Eakins inherits a time machine, he soon realizes that he has enormous power to shape the course of history. He can foil terrorists, prevent assassinations, or just make some fast money at the racetrack. And if he doesn't like the results of the change, he can simply go back in time and talk himself out of making it! But Dan soon finds that there are limits to his powers and forces beyond his control.

    your life is over! Logan-6 has been trained to kill; born and bred from conception to be the best of the best. But his time is short and before his life ends he's got one final mission: Find and destroy Sanctuary, a fabled haven for those that chose to defy the system. But when Logan meets and falls in love with Jessica, he begins to question the very system he swore to protect and soon they're both running for their lives. When Last Day comes, will you lie down and die... or run!

    Strange fireballs race through the sky above the deepest trenches of the oceans. Something is about to show itself, something terrible and alien, a force capable of causing global catastrophe.

    What if a world existed in which no humans ever evolved? No cities. No pollution. No laws. A fantastic world filled with unimaginable riches in which everything—everything—was yours just for the taking?Charlie has found that world. And he plans to use it to make him and his friends rich.There is a problem: How do you keep something this big a secret?