. .[Clark] handles both ideas and characters with deftness and wit; in short, the outstanding living science fiction writers is romping".-- "Chicago Sun-Times". In the year 2110 technology has cured most of our worries. But even as humankind enters a new golden age, an amateur astronomer points his telescope at just the right corner of the night sky and sees disaster hurtling toward Earth: a chunk of rock that could annihilate civilization. While a few fanatics welcome the apocalyptic destruction as a sign from God, the greatest scientific minds of Earth desperately search for a way to avoid the inevitable. On board the starship Goliath Captain Robert Singh and his crew must race against time to redirect the meteor form its deadly collision course. Suddenly they find themselves on the most important mission in human history--a mission whose success may require the ultimate sacrifice."Clarke is still at the top of his game".-- "The Detroit News"."As good as any anything he's written. . .for a hard-science-fiction treat, I suspect "The Hammer Of God" won't be topped".-- "Star Tribune", Minneapolis."Classic Clarke. . .a good story".-- "The Denver Post".

    One man is mentally linked to an alien who is spearheading an invasion of Earth; a group of soldiers fight to win new space for Earth; and a small group of men fight against a machine that controls all life.

    It is also a novel about equality and what happens when the hierarchical structures by which we arrange our daily lives disappear.

    The only problem is that the Confederacion needs him as one of its twelve Prime Operators for its secret service, the TBII. The TBII wants him as a spy, thief & assassin. It's not, of course, a problem for the Confederacion, which simply uses immersion therapy & hypnotic personality overlay for Otto's training, then sends him out in deep cover, encased in plastiflesh, on a variety of dangerous missions on a number of bizarre worlds. But for him, it's a different matter: what he has to witness & what he's forced to do take a terrible toll. Always he returns to his original self--his conscience stabbed by the memory of all those he'd killed in the service of interstellar harmony.

    For the first time in one volume: every word Bruce Sterling has ever written on the Shapers-Mechanists Universe.In the last decade, Sterling has emerged a pioneer of crucial, cutting-edge science fiction. Now Ace Books is proud to offer Sterling's stunning world of the Schismatrix--where Shaper revolutionaries struggle against aristocratic Mechanists for ultimate control of man's destiny. This volume includes the classic full-length novel, Schismatrix, plus thousands of words of mind-bending short fiction.

    The story was called "Nightfall", and many years later it has long been recognized as a classic, its author a legend. Now, the Gran Master of Science Fiction teams with Robert Silverberg, one of the field's top award-winning authors, to explore and expand an apocalyptic tale that is more spellbinding today than ever before -- Nightfall: The Novel.Imagine living on a planet with six suns that never experiences Darkness. Imagine never having seen the Stars. Then, one by one the suns start to set, gradually leading into Darkness for the first time ever. Kalgash is a world on the edge of chaos, torn between the madness of religious fanaticism and the unyielding rationalism of scientists. Lurking beneath it all is a collective, instinctual fear of the Darkness. For Kalgash knows only the perpetual light of day; to its inhabitants, a gathering twilight portends unspeakable horror. And only a handful of people on the planet are prepared to face the truth, their six suns are setting all at once for the first time in over two thousand years, signaling the end of civilization as it explodes in the awesome splendor of Nightfall.Encompassing the psychology of disaster, the tenacity of the human spirit, and, ultimately, the regenerative power of hope, Nightfall is a tale rich in character and suspense that only the unique collaboration of Isaac Asimov and Robert Silverberg could create.

    That he will never contract a disease, an infection, or even a cold. That because he will never die, he must surrender the right to live.For Dr. Russell Pearce, the price is eternal suspicion. He appreciates what synthesizing the elixir vitae from the Immortal’s genetic makeup could mean for humankind. He also fears what will happen should Cartwright’s miraculous blood fall into the wrong hands.For the wealthy and powerful, no price is too great. Immortality is now a fact rather than a dream. But the only way to achieve it is to own it exclusively. And that means hunting down and caging the elusive Cartwright, or one of his offspring.

    She flees him, but he pursues her through doorways-interdimensional gateways-to the other place, determined to sacrifice his life, if necessary, for her love. For in her world, to be her mate . . . is to die.

    The Peace Authority conquered the world with a weapon that never should have been a weapon--the "bobble," a spherical force-field impenetrable by any force known to mankind. Encasing governmental installations and military bases in bobbles, the Authority becomes virtually omnipotent. But they've never caught Paul Hoehler, the maverick who invented the technology, and who has been working quietly for decades to develop a way to defeat the Authority. With the help of an underground network of determined, independent scientists and a teenager who may be the apprentice genius he's needed for so long, he will shake the world, in the fast-paced hard-science thriller that garnered Vinge the first of his four Hugo nominations for best novel.

    Avalon seems perfect, a verdant, livable world still in its prehistoric age. The biologists and engineers who busy themselves planting and building scoff at the warnings of professional soldier Cadmann Weyland until a large, unnaturally fast and cunning predator begins stalking the colony. Learning how to kill the beast is only the first step, for they must then reevaluate their entire understanding of Avalon's ecology.

    The aliens put their ship into orbit around the moon, peacably ignoring frantic human excitement, and asked to see someone who knew the stars. Earth sent Bradley Reynolds, 52, officially retired, a man who knew the stars as well as any man could. But the aliens wanted more than Reynolds could give. They wanted to know whether the sun loves us.For Bradley Reynolds, it was the beginning of a life-long quest for alien intelligence, for beings who could speak to him with that wonderful Otherness. On Mars, on Jupiter, on Titan he would find hints of what he sought, and what he would find in the end was a tranformation so glorious as to be far beyond his capacity to dream.

    Now the last men struggled on in isolated communities, maintaining machines they could no longer build, ruled over by the distant Political Office in the person of the much despised and universally feared Political Officers. These black phantoms ruled mankind, telling one how to think, how to act, and when to obey the call to the Gathering.And now the call had come for Kurt to sail off to Gibraltar to the Gathering - the ritual massing of the fleet for the War, the Gathering from which no one had ever returned...

    So how is it that, in competition with the worst villains the universe has to offer, he's become the proud owner of the last seedship of Earth's legendary Ecological Engineering Corps? Never mind, just be thankful that the most powerful weapon in human space is in good hands-hands which now control cellular material for thousands of outlandish creatures. With his unique equipment, Tuf is set to tackle the problems human settlers have created in colonizing far-flung worlds: hosts of hostile monsters, a population hooked on procreation, a dictator who unleashes plagues to get his own way...and in every case the only thing that stands between the colonists and disaster is Tuf's ingenuity - and his reputation as an honest dealer in a universe of rogues...Tuf Voyaging features interior illustrations by Janet Aulisio. Included in it will be her original eight illustrations, along with 28 newly commissioned ones.

    Successful in its efforts to create a glittering interstellar empire, founded on the use of an ultra-advanced computer and bioengineering technology, humankind becomes the prey of its own creation, the Aristoi.

    As scientists frantically work to prevent the ultimate disaster, they discover that the entire planet could be destroyed within a year. But while they look for an answer, some claim that the only way to save Earth is to let its human inhabitants become extinct: to reset the evolutionary clock and start over.