This classic science fiction masterwork by Isaac Asimov weaves stories about robots, humanity, and the deep questions of existence into a novel of shocking intelligence and heart.

Only a few know the terrifying truth - an outcast Earth scientist, a rebellious alien inhabitant of a dying planet, a lunar-born human intuitionist who senses the imminent annihilation of the Sun... They know the truth - but who will listen? They have foreseen the cost of abundant energy - but who will believe?These few beings, human and alien, hold the key to the Earth's survival.

The Eternals, the ruling class of the Future, had the power of life and death not only over every human being but over the very centuries into which they were born. Past, Present, and Future could be created or destroyed at will. You had to be special to become an Eternal. Andrew Harlan was special. Until he committed the one unforgivable sin - falling in love. Eternals weren’t supposed to have feelings. But Andrew could not deny the sensations that were struggling within him. He knew he could not keep this secret forever. And so he began to plan his escape.

A collection of 20 classic short stories by Isaac Asimov, author of the Foundation series, featuring the definitive and only in-print version of “Nightfall”.

The Mote In God's Eye is their acknowledged masterpiece, an epic novel of mankind's first encounter with alien life that transcends the genre. No lesser an authority than Robert A. Heinlein called it "possibly the finest science fiction novel I have ever read".

On the world called Hyperion, beyond the law of the Hegemony of Man, there waits the creature called the Shrike. 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.

Are you puzzled by pulsars? Baffled by black holes? Bewildered by the big bang? If so, here are succinct, crystal-clear answers to more than 100 of the most significant questions about the essential nature of the universe - questions that have fired the imagination since the beginning of history. Over the course of this fantastic voyage, the origins, the discoveries, and the stunning achievements of astronomy will unfold before your eyes

It has been 40 years since the publication of this classic science-fiction novel that changed the way we look at the stars and ourselves. From the savannas of Africa at the dawn of mankind to the rings of Saturn as man adventures to the outer rim of our solar system, 2001: A Space Odyssey is a journey unlike any other.

Adrian Tchaikovksy's critically acclaimed stand-alone novel Children of Time is the epic story of humanity's battle for survival on a terraformed planet. Who will inherit this new Earth? The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age - a world terraformed and prepared for human life. But all is not right in this new Eden.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.

From early work like "Rescue Party" and "The Lion of Comarre", through classic stories including "The Star", "Earthlight", "The Nine Billion Names of God", and "The Sentinel" (kernel of the later novel and movie 2001: A Space Odyssey), all the way to later work like "A Meeting with Medusa" and "The Hammer of God", this comprehensive short story collection encapsulates one of the great science fiction careers of all time.

Arguably the greatest science fiction writer who ever lived, Isaac Asimov also possessed one of the most brilliant and original minds of our time. His accessible style and far-reaching interests in subjects ranging from science to humor to history earned him the nickname "the Great Explainer". I. Asimov is his personal story - vivid, open, and honest - as only Asimov himself could tell it.

Jazz Bashara is a criminal. Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent. Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down.

In what is considered one of Heinlein's most hair-raising, thought-provoking, and outrageous adventures, the master of modern science fiction tells the strange story of an even stranger world. It is 21st-century Luna, a harsh penal colony where a revolt is plotted between a bashful computer and a ragtag collection of maverick humans, a revolt that goes beautifully until the inevitable happens. But that's the problem with the inevitable: it always happens.

First prize in the Skyway Soap slogan contest was an all-expenses-paid trip to the moon. The consolation prize was an authenticspace suit, and when scientifically minded high school senior Kip Russell wonit, he knew for certain he would use it one day to make a sojourn of his own tothe stars. But "one day" comes sooner than he thinks when he tries the suit on in his backyard - and finds himself worlds away, a prisoner aboard a space pirate's ship.

From early work like "Rescue Party" and "The Lion of Comarre", through classic stories including "The Star", "Earthlight", "The Nine Billion Names of God", and "The Sentinel" (kernel of the later novel and movie 2001: A Space Odyssey), all the way to later work like "A Meeting with Medusa" and "The Hammer of God", this comprehensive short story collection encapsulates one of the great science fiction careers of all time.

First came the news that a flying saucer had landed in Iowa. Then came the announcement that the whole thing was a hoax. End of story. Case closed. Except that two agents of the most secret intelligence agency in the US government were on the scene and disappeared without reporting in. And four more agents who were sent in also disappeared. So the head of the agency and his two top agents went in and managed to get out with their discovery

The Lords of Creation rule the Nine Worlds through its control of the ultra-advanced technology that has permitted the colonization of the entire solar System. More gods than men, the Lords of Creation have cheated Death itself. But although they rule the solar system with their god-like scientific knowledge, there are even more powerful forces to be feared lurking out in the dark depths of space. And when an unthinkably terrible enemy that rules a vast network of dead stars and planets comes to the Nine Worlds, it falls to them to stop it, though entire worlds may perish.

Glen Runciter runs a lucrative business - deploying his teams of anti-psychics to corporate clients who want privacy and security from psychic spies. But when he and his top team are ambushed by a rival, he is gravely injured and placed in "half-life," a dreamlike state of suspended animation. Soon, though, the surviving members of the team begin experiencing some strange phenomena, such as Runciter's face appearing on coins and the world seeming to move backward in time.

The year is 1961. The Cold War is in full swing and the space race is on. Russia aims to send humanity to space. But what if space comes to humanity instead? Yuri Gagarin’s epic flight into space is disrupted when an alien Mothership jumps into orbit, causing a cosmic car crash that defies all odds. Everything changes. The US and USSR must quickly put aside their differences. In exchange for the Earth’s help in the rebuilding of their Mothership, the mysterious aliens, the Vulbathi, offer promises of technology beyond humanity's wildest dreams.

The members of the Polaris Project knew what they were giving up when they volunteered to fly to the star named Angel-21, but the allure of being the first explorers to leave the Solar System far outweighed the risks. As it turned out, the most dangerous thing they faced wasn't the mission, it was the homecoming. Eight hundred years have passed, and Earth is nothing like they thought it would be.

Only a few know the terrifying truth - an outcast Earth scientist, a rebellious alien inhabitant of a dying planet, a lunar-born human intuitionist who senses the imminent annihilation of the Sun... They know the truth - but who will listen? They have foreseen the cost of abundant energy - but who will believe?These few beings, human and alien, hold the key to the Earth's survival.

The American War is ended, and the intrepid artillerists of the Baltimore Gun Club have nothing left to do. So why not build a giant cannon and shoot three men to the moon?

When humanity reaches for the stars, our probes are destroyed. They crash into an incredibly advanced piece of technology: a massive force-field. Unknown beings have placed a barrier around our star and planets, enclosing us within. We’re locked inside a Great Sphere. Was this invisible obstacle built to imprison us - or to protect us? No one knows the truth, but it soon becomes clear the barrier has leaks. Aliens infiltrate and try to sabotage our efforts to escape our cage.

Arriving home after a harrowing tour of duty on a hostile alien world, USC Sergeant Matt Reeves has just learned the enemy - an insidious humanoid species known as the Wraith - may be preparing to attack Earth again. With much of Earth still in ruins, and its military forces stretched beyond capacity fighting an interstellar war, there is no way mankind could survive another invasion. Enter The Emissary Program. Matt learns the USC have been secretly experimenting with time travel....

With an introduction by J. J. Pierce, this volume features the 12 most important stories by Cordwainer Smith, a unique writer who has fused wonder and poetry into imaginative tales that transcend both science and fiction.

Arcana has never encountered another intelligent species while exploring scores of other worlds. No cities, no vast empires, no civilizations, and no equivalent of their own dragons, gryphons, spells, and wizards. But all of that is about to change. It seems there is intelligent life elsewhere in the multiverse. Other human intelligent life, with terrifying new weapons and powers of the mind...and wizards who go by the strange title of ''scientist''.

Countdown for blastoff x-minus five, four, three, two, x-minus one, fire! "From the far horizons of the unknown come transcribed tales of new dimensions in time and space. These are stories of the future, adventures in which you'll live in a million could-be years on a thousand may-be worlds." Once again, these 18 digitally restored and remastered episodes are available from the Radio Spirits Archives Collection. This digital re-release of our long out of print cassette collection includes updated and corrected episode dates and series titles.

Earth is a dying planet. To survive, humanity founds the Circuit, a string of colonies across the solar system, dedicated to mining resources vital to preserving what remains of mankind. Here there are no heroes or villains, only those willing to do what's necessary to survive. The New Earth Tribunal, a powerful religious faction, has risen to rule the Circuit. They believe a Spirit within the Earth will one day appear and welcome humanity back home.

Most days, Sarya doesn't feel like the most terrifying creature in the galaxy. Most days, she's got other things on her mind. Like hiding her identity among the hundreds of alien species roaming the corridors of Watertower Station. Or making sure her adoptive mother doesn't casually eviscerate one of their neighbors. Again. And most days, she can almost accept that she'll never know the truth - that she'll never know why humanity was deemed too dangerous to exist.