Rails must be freshly laid ahead of the city & carefully removed in its wake. Rivers & mountains present nearly insurmountable challenges to the ingenuity of the city's engineers. But if the city does not move, it will fall farther & farther behind the optimum & into the crushing gravitational field that has transformed life on Earth. The only alternative to progress is death. The secret directorate that governs the city makes sure that its inhabitants know nothing of this. Raised in common in creches, nurtured on synthetic food, prevented above all from venturing outside the closed circuit of the city, they're carefully sheltered from the dire necessities that have come to define human existence. Yet the city is in crisis. People are growing restive. The population is dwindling. The rulers know that, for all their efforts, slowly but surely the city is slipping ever farther behind the optimum. Helward Mann is a member of the city's elite. Better than anyone, he knows how tenuous is the city's continued existence. But the world he's about to discover is infinitely stranger than the strange world he believes he knows so well.

    based on some real, honest, practical ethical thinking. It is an idea book.' - Groff Conklin in Galaxy Science FictionAsher Sutton has been lost in deepest space for twenty years. Suddenly arrives a warning from the future, that he will return- and that he must be killed. He is destined to write a book whose message may lead to the death of millions in centuries to come. For this reason Sutton is hounded by the sinister warring factions of the future who wish to influence or prevent the writing of this book he has not yet begun to write.Yet already a copy has been found in the burnt-out wreckage of a space-craft on Aldebaran XII.

    NASA, NATO, and the UN sent explorers to the asteroid's surface...and discovered marvels and mysteries to drive researchers mad.For the Stone was from space--but perhaps not our space; it came from the future-but perhaps not our future; and within the hollowed asteroid was Thistledown. The remains of a vanished civilization. A human--English, Russian, and Chinese-speaking--civilization. Seven vast chambers containing forests, lakes, rivers, hanging cities...And museums describing the Death; the catastrophic war that was about to occur; the horror and the long winter that would follow. But while scientists and politicians bickered about how to use the information to stop the Death, the Stone yielded a secret that made even Earth's survival pale into insignificance.

    As the planet is transformed from an unexplored and forbidding terrain to a troubled image of a re-created Earth, we meet the First Hundred explorers—men and women who are bound together by Earth’s tenuous toehold on Mars. Presenting unforgettable stories of hope and disappointment, of fierce physical and psychological struggles, The Martians is an epic chronicle of a planet that represents one of humanity’s most glorious possibilities.The Martians is a unique collection of previously unpublished fiction, a fascinating addition to Robinson’s oeuvre, and a must for all lovers of the red planet.

    His assignment: to detect any signs of latent aggression in this planet’s population.To his astonishment, he finds that his own latent extrasensory powers have suddenly blossomed, and he is invited to join the company of “gods” on this planet.And people place certain expectations on their gods….

    1 RefugeeCALIGULA OF THE STARSThough he was later accused of every crime and sexual perversion in the galaxy, Hope Hubris began as an innocent. Because he defended his older sister against the violent lusts of a wealthy scion, Hope and his peasant family were forced to flee Callisto, one of the moons of Jupiter. Pursued by the bloodthirsty scions across the airless desert, they barely escaped with their lives. The illegal space bubble was overcrowded with refugees, all hoping to reach Jupiter for asylum.But the space travelers had not reckoned on the terrible threat of high space-the pirates, barbaric men who rape, rob, and murder, with no thought but to satisfy their bestial appetites. It will take all Hope's ingenuity to survive, but the atrocities he witnesses will never die. There is only one way he can be rid of them . . . REVENGE

    So the Terran government made a law--no further contact would be allowed with sentient creatures anywhere in the galaxy. Therefore Doona could be colonized only if an official survey established that the planet was both habitable and uninhabited.But Spacedep had made a mistake--Doona was inhabited. Now the colonists' choice was limited. Leave Doona and return to the teeming hell of an overpopulated Terra. Or kill the catlike Hrrubans. Or learn, for the first time in history, how to coexist with an alien race.

    But mankind is too busy hating, stealing, scheming, and killing to care. As luminous green trails of cosmic dust and vapor stream across the heavens, blood flows beneath: nations wage all-out war, bitter strikes erupt, and jealous lovers plot revenge and murder. The earth slips past the comet by the narrowest of margins, but all succumb to the gases in its tail. When mankind wakes up, everyone is completely and profoundly different. An ill-fated romance between Willie Leadford and Nettie Stuart unfolds in a world buried in misery and bent on its own destruction. After the earth passes through the comet's tail, suffering, pettiness, and injustice melt away. Willie, Nettie, and everyone around them are reborn. They now see themselves and their world in a dramatically new and wonderful way.

    dinAlt finds excitement and intrigue as he investigates Pyrrus, a strange place where all the beasts, plants, and natural elements are out to destroy man; the unknown second planet, where every man has to kill other men or live as a slave; and Felicity, where creatures are bred for thousands of years for a single deadly purpose. Well-known to fantasy and science fiction enthusiasts, this tale portrays exciting adventures filled with the elements of classic characters and plot twists.

    The Servants of Wrath have deified Carlton Lufteufel and re-christened him the Deus Irae. In the small community of Charlottesville, Utah, Tibor McMasters, born without arms or legs, has, through an array of prostheses, established a far-reaching reputation as an inspired painter. When the new church commissions a grand mural depicting the Deus Irae, it falls upon Tibor to make a treacherous journey to find the man, to find the god, and capture his terrible visage for posterity.

    He didn't understand how he could communicate with the animals or why they were contacting him. But from the moment he began work at Kyger's pet emporium on Korwar he was enmeshed in a perilous intrigue... an intrigue that would leave more than one man dead, an entire government in jeopardy, and Horan himself both master and captive of the most extraordinary band of warriors his world had ever known.

    It is the monumental story of a Galactic Empire in decline, and the secret society of scientists who seek to shorten the inevitable Dark Age with the science of psychohistory. Now, with the permission -- and blessing -- of the Asimov estate, the epic saga continues.Fate -- and a cruel Emperor's arbitrary power -- have thrust Hari Seldon into the First Ministership of the Empire against his will. As the story opens, Hari is about to leave his quiet professorship and take on the all but impossible task of administering 25 million inhabited worlds from the all-steel planet of Trantor. With the help of his beautiful bio-engineered "wife" Dors and his alien companion Yugo, Seldon is still developing the science that will transform history, never dreaming that it will ultimately pit him against future history's most awesome threat.

    Violence erupts and insanity reigns as the human race struggles for survival in a worldwide desert of despair.

    A legend as old as the stars rules this constructed world; When the seventh seventh seventh human Heptarch is crowned, he will be the Kristos and will bring eternal salvation . . . or the destruction of the cosmos.Patience is the only daughter of the rightful Heptarch, but she, like her father before her, serves the usurper who has destroyed her family. For she has learned the true ruler's honor.Duty to one's race is more important than duty to one's self. But the time for prudence has passed, and that which has slept for ages has awakened. And Patience must journey to the heartsoul of this planet to confront her destiny . . . and her world's.

    Welcome to Urban Monad 116. A lofty spire reaching nearly two miles into the sky, the one thousand stories of this building are home to over eight hundred thousand people living in peace and harmony. In the year 2381, nearly all of Earth's 75 billion live in the hundreds of monolithic structures scattered across the globe, with the exception of the small agricultural communes that supply the Urbmons with food. Life in Urbmon 116 is highly regulated, life is cherished, and the culture of procreation is seen as the highest pinnacle of god's plan. Conflict is abhorred, and any who disturb the peace face harsh punishment, to risk being labeled a flippo, for whom there is only one punishment, being sent "down the chute" to be recycled as fertilizer. But inside their glorious world are a few who dare to doubt and dream:Aurea Holston, a beautiful young bride who fears leaving the only world she's ever known.Jason Quevedo, a historian, searches records of the twentieth century hoping to find the root of his discontent with the perfection of Urbmon life.Siegmund Kluver, a young and ambitious administrator, strives to reach the top levels of the Urbmon?s government and discovers the civilization's dark truths.Michael Statler, a computer engineer, harbors a forbidden desire. He dreams of leaving the building, of walking in the open air and visiting the far-off sea. This is a dream he must keep secret. If anyone were to find out, he'd face the worst punishment imaginable.The World Inside is a fascinating exploration of society and what makes us human, told by a master of speculative fiction. This novel consists of a number of shorter works linked together. Fixup of the following stories: All the Way Up, All the Way Down (1971), We Are Well Organized (1970). The Throwbacks (1970), The World Outside (1970), A Happy Day in 2381 (1970), and In the Beginning (1970).