Once the Empire had ruled the galaxy, linking thousands of worlds with a network of commerce, culture and law... Now, with the Empire gone, only isolated planets remained and they were rapidly sinking into oblivion. Then came Mass, a man driven by a dream of rediscovering the Empire... but to achieve that dream he must find and control the space skimmer, one of the miraculous vessels that had first made the Empire possible...

    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.

    . . a sophisticated traveler between many worlds. But he had certainly never thought of himself as a hero.Skua September, on the other hand, never thought of himself as anything else.A matched pair, if ever there was one!When the two of them were suddenly stranded on a deadly frozen world, Ethan Fortune incredibly found himself cast in the role of Leader.And he didn't find that at all amusing . . .

    It's a man's world - but a robot's future...One day the tough, dangerous, dirty jobs will be done by robots: - superhumanly strong and invulnerable soldiers, with a built-in killer instinct- miners and sandhogs who can work on distant planets too deadly for man- incorruptible judges, fearing neither political pressure nor criminal vengeance - librarians with total knowledge instantly available...Harry Harrison has painted a chilling yet piercingly prophetic picture of the Robot Age: a time when man's 'slave' machines have learned their own strength - and the weaknesses of their masters!

    A Shaper. In a warm womb of metal, his patients dream their neuroses, while Render, intricately connected to their brains, dreams with them, makes delicate adjustments, and ultimately explains and heals. Her name is Eileen Shallot, a resident in psychiatry. She wants desperately to become a Shaper, though she has been blind from birth. Together, they will explore the depths of the human mind -- and the terrors that lurk therein

    But Form Change has its darker aspects, ranging from unautorized experimentation on human subjects to a threat to the very essence of humanity - a SIGHT OF PROTEUS.Sheffield has written a thrilling novel of pursuit and unveiling in a world where the froms of humanity are practically boundless - until one man breaks an unbreakable law; until an alien force looses itself upon the world - and a planet that exploded sixteen million years ago delivers its final legacy...

    There are permanent populations established on the Moon, Venus and Mars. Outer space inhabitants have formed a new political entity, the Federation, and between the Federation and Earth a growing rivalry has developed. EARTHLIGHT is the story of this emerging conflict.

    For although the UN has slated "anomalous" children for deportation and destruction, other people—especially Supreme Goodmember Arnie Kott of the Water Worker's union—suspect that Manfred's disorder may be a window into the future. In Martian Time-Slip Philip K. Dick uses power politics and extraterrestrial real estate scams, adultery, and murder to penetrate the mysteries of being and time.

    Few of them are aware that their prosperous civilization is totally dependent upon the olz, a race of slaves owned by their god-emperor. The olz till the fields and work the forests and mines, and their reward is starvation and the vicious, caustic stroke of the zrilm whip.

    Hellstrom's Project 40 was a cover for a secret laboratory, a special team of agents was immediately dispatched to discover its true purpose and its weaknesses—it could not be allowed to continue. What they discovered was a nightmare more horrific and hideous than even their paranoid government minds could devise.First published in Galaxy magazine in 1973 as "Project 40," Frank Herbert's vivid imagination and brilliant view of nature and ecology have never been more evident than in this classic of science fiction.

    Johnny Mnemonic (1981)The Gernsback Continuum (1981)Fragments of a Hologram Rose (1977)The Belonging Kind (1981) with John ShirleyHinterlands (1981)Red Star, Winter Orbit (1983) with Bruce SterlingNew Rose Hotel (1984)The Winter Market (1985)Dogfight (1985) with Michael SwanwickBurning Chrome (1982)

    It was tricky, though, taking group after group of tourists back to the same historic event without meeting yourself coming or going. Trickier still was avoiding the temptation to become intimately involved with the past and interfere with events to come. The deterrents for any such actions were frighteningly effective. So Judson Daniel Elliott played by the book. Then he met a lusty Greek in Byzantium who showed him how rules were made to be broken... and set him on a family-history-go-round that would change his past and his future forever!

    They were thought to be the ruins of an invading force of space monsters that men had defeated during the Dark Ages centuries before. Butthe ruins were visibly getting newer — rebuilding themselves. The militarists who had reconstructed society after the supposed invasion were getting panicky. Until they found a complete invader vehicle -- and learned it travelled through time. But what was Time? What was Now? Could there be more than one Time Front — one going forward, one in reverse? And what would happen when two such fronts met in the inevitable COLLISION COURSE?

    Once he was outbound, where the Society that ruled Earth could not reach him, he headed his starship toward the galactic core, where the unimaginable energies of the Universe wrenched the fabric of time and space and promised final escape from his captors.Then he returned to an Earth eons older than the one he'd left...a planet that had had 3,000,000 years to develop perils he had never dreamed of -- perils that became nightmares that he had to escape...somehow!

    Only the best and brightest--the strongest and the most courageous--ever manage to become Space Cadets, at the Space Academy. They are in training to be come part of the elite guard of the solar system, accepting missions others fear, taking risks no others dare, and upholding the peace of the solar system for the benefit of all.But before Matt Dodson can earn his rightful place in the ranks, his mettle is to be tested in the most severe and extraordinary ways--ways that change him forever, from the midwestern American boy into a man of the Solar Patrol.