The invention of the Hotline -- a constant stream of data from a star in the constellation Ophiuchus -- facilitates survival and enables the development of amazing new technologies. Then, after 400 years, humanity's unknown helpers send a bill for their services...and suddenly everything is threatened once again.The Ophiuchi Hotline was John Varley's first novel, and it received nominations for both the Hugo and Nebula awards; he later won both for his book Persistence of Vision.

    The colonies are linked together by the occasional sublight colony ship voyages and hyperspatial data-casting. Human consciousness is digitally freighted between the stars and downloaded into bodies as a matter of course.But some things never change. So when ex-envoy, now-convict Takeshi Kovacs has his consciousness and skills downloaded into the body of a nicotine-addicted ex-thug and presented with a catch-22 offer, he really shouldn't be surprised. Contracted by a billionaire to discover who murdered his last body, Kovacs is drawn into a terrifying conspiracy that stretches across known space and to the very top of society.

    Dick—that unfolds in the near future, in parallel worlds.In his youth, Richard “Dodge” Forthrast founded Corporation 9592, a gaming company that made him a multibillionaire. Now in his middle years, Dodge appreciates his comfortable, unencumbered life, managing his myriad business interests, and spending time with his beloved niece Zula and her young daughter, Sophia. One beautiful autumn day, while he undergoes a routine medical procedure, something goes irrevocably wrong. Dodge is pronounced brain dead and put on life support, leaving his stunned family and close friends with difficult decisions. Long ago, when a much younger Dodge drew up his will, he directed that his body be given to a cryonics company now owned by enigmatic tech entrepreneur Elmo Shepherd. Legally bound to follow the directive despite their misgivings, Dodge’s family has his brain scanned and its data structures uploaded and stored in the cloud, until it can eventually be revived. In the coming years, technology allows Dodge’s brain to be turned back on. It is an achievement that is nothing less than the disruption of death itself. An eternal afterlife—the Bitworld—is created, in which humans continue to exist as digital souls. But this brave new immortal world is not the Utopia it might first seem . . . Fall, or Dodge in Hell is pure, unadulterated fun: a grand drama of analog and digital, man and machine, angels and demons, gods and followers, the finite and the eternal. In this exhilarating epic, Neal Stephenson raises profound existential questions and touches on the revolutionary breakthroughs that are transforming our future. Combining the technological, philosophical, and spiritual in one grand myth, he delivers a mind-blowing speculative literary saga for the modern age.

    There are some who want to improve it. There are some who want to eradicate it. And there are others who just want to exploit it.When a young scientist is caught improving Nexus, he’s thrust over his head into a world of danger and international espionage – for there is far more at stake than anyone realizes.From the halls of academe to the halls of power, from the headquarters of an elite US agency in Washington DC to a secret lab beneath a top university in Shanghai, from the underground parties of San Francisco to the illegal biotech markets of Bangkok, from an international neuroscience conference to a remote monastery in the mountains of Thailand – Nexus is a thrill ride through a future on the brink of explosion.

    Humanity flows away from Earth, into space, and in time forgets our home world and creates a new empire, the Interdependency, whose ethos requires that no one human outpost can survive without the others. It’s a hedge against interstellar war -- and a system of control for the rulers of the empire.The Flow is eternal -- but it is not static. Just as a river changes course, The Flow changes as well, cutting off worlds from the rest of humanity. When it’s discovered that The Flow is moving, possibly cutting off all human worlds from faster than light travel forever, three individuals -- a scientist, a starship captain and the Empress of the Interdependency -- are in a race against time to discover what, if anything, can be salvaged from an interstellar empire on the brink of collapse.

    Permutation city is the tale of a man with a vision - how to create immortality - and how that vision becomes something way beyond his control. Encompassing the lives and struggles of an artificial life junkie desperate to save her dying mother, a billionaire banker scarred by a terrible crime, the lovers for whom, in their timeless virtual world, love is not enough - and much more - Permutation city is filled with the sense of wonder.

    When a team of scientists is assembled to investigate this world, exoethnologist Sara Callicot is recruited to keep an eye on an unstable crewmate. Thora was once a member of the interplanetary elite, but since her prophetic delusions helped mobilize a revolt on Orem, she’s been banished to the farthest reaches of space, because of the risk that her very presence could revive unrest.Upon arrival, the team finds an extraordinary crystalline planet, laden with dark matter. Then a crew member is murdered and Thora mysteriously disappears. Thought to be uninhabited, the planet is in fact home to a blind, sentient species whose members navigate their world with a bizarre vocabulary and extrasensory perceptions.Lost in the deep crevasses of the planet among these people, Thora must battle her demons and learn to comprehend the native inhabitants in order to find her crewmates and warn them of an impending danger. But her most difficult task may lie in persuading the crew that some powers lie beyond the boundaries of science.

    When he and his crew stumble upon a derelict ship, the Scopuli, they find themselves in possession of a secret they never wanted. A secret that someone is willing to kill for—and kill on a scale unfathomable to Jim and his crew. War is brewing in the system unless he can find out who left the ship and why.Detective Miller is looking for a girl. One girl in a system of billions, but her parents have money and money talks. When the trail leads him to the Scopuli and rebel sympathizer Holden, he realizes that this girl may be the key to everything.Holden and Miller must thread the needle between the Earth government, the Outer Planet revolutionaries, and secretive corporations—and the odds are against them. But out in the Belt, the rules are different, and one small ship can change the fate of the universe.

    Cherryh's eponymous series, Foreigner begins an epic tale of the survivors of a lost spacecraft who crash-land on a planet inhabited by a hostile, sentient alien race.From its beginnings as a human-alien story of first contact, the Foreigner series has become a true science fiction odyssey, following a civilization from the age of steam through early space flight to confrontations with other alien species in distant sectors of space. It is the masterwork of a truly remarkable author.

    Ordered to destroy the comet, he instead discovers that it is actually the shell of a derelict space probe - a wreck with just enough power to emit a single electronic signal...2034: Then a reply is heard. Searching for the source of this signal that comes from outside the solar system, Nigel discovers the existence of a sentient ship. When the new vessel begins to communicate directly with him, the astronaut learns of the horrors that await humanity. For the ship was created by an alien race that has spent billions and billions of years searching for intelligent life...to annihilate it.In the Ocean of Night is a 1977 hard science fiction novel by Gregory Benford. It is the first novel in his Galactic Center Saga. It was nominated for the Nebula Award for Best Novel in 1977. It was first published as a novelette in the May/June 1972 edition of Worlds of If Science Fiction.

    They all flared into brilliance at once, then disappeared, replaced by a flat, empty black barrier. He and his best friends, Jason and Diane Lawton, had seen what became known as the Big Blackout. It would shape their lives.Life on Earth is about to get much, much stranger.

    On the Moon, an enigma is uncovered.So great are the implications of this discovery that for the first time men are sent out deep into our solar system.But long before their destination is reached, things begin to go horribly, inexplicably wrong...One of the greatest-selling science fiction novels of our time, this classic book will grip you to the very end.

    This remote world is mostly ocean, and it is a rare visitor who ventures beyond the safety of the island Dome. Outside it, only the native Hoopers dare risk the voracious appetites of the planet's wildlife. But somewhere out there is Spatterjay Hoop -- and Keech will not rest until he brings this legendary renegade to justice for hideous crimes committed centuries ago during the Prador Wars.While Keech is discovering that Hoop is now a monster -- his body and head living apart from each other -- Janer is bewildered by a place where the native inhabitants just will not die and angry when he finally learns the Hive mind's intentions for him. Meanwhile, Erlin thinks she has plenty of time to find the answers she seeks, but could not be more wrong. For one of the most brutal of the alien Prador is about to pay the planet a surreptitious visit, intent on exterminating all remaining witnesses to his wartime atrocities. As the visitors' paths converge, major hell is about to erupt in a chaotic waterscape where minor hell is already a remorseless fact of everyday life . . . and death.

    The Stars My Destination is a classic of technological prophecy and timeless narrative enchantment by an acknowledged master of science 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.