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”.

Get ready to experience two more origin stories in the Backyard Starship universe.

For the better part of five decades, Jerry Pournelle's name has been synonymous with hard-hitting science fiction. For the first time, all of Pournelle's best short work has been collected in a single volume. Herein you will find over a dozen short stories, each with a new introduction by editor and longtime Pournelle assistant John F. Carr, as well as essays and remembrances by Pournelle collaborators and admirers.

Needle in a Timestack is Robert Silverberg at his very best - intelligent, inventive, and visionary. This collection showcases his talent for thought-provoking science fiction, ranging in themes from time travel to space travel, the media to mortality. In the titular story - under development as a feature film by Oscar-winning screenwriter John Ridley - a jealous ex-husband warps time in a vindictive attempt to destroy his former wife's new marriage. Thirty-one identical sons have a shocking surprise for their mother in "There Was an Old Woman".

Colton Beck has six months to live. He works for the Angor near Los Angeles, aware that any day could be his last. The Angor arrived twenty years ago, resolved to help mankind survive, but not everyone believes their motives are honorable. When the Angor offer humanity a colony world, Colton is determined to see another planet before his final breath. He's been diagnosed with Xeno, a rare disorder that surfaced with the Angor's arrival, but he won't let this stop him.

Misanthropic psychologist Dr. Grace Park is placed on the Deucalion, a survey ship headed to an icy planet in an unexplored galaxy. Her purpose is to observe the thirteen human crew members aboard the ship - all specialists in their own fields - as they assess the colonization potential of the planet, Eos. But frictions develop as Park befriends the androids of the ship, preferring their company over the baffling complexity of humans, while the rest of the crew treats them with suspicion and even outright hostility.

After a rough break up, Wyatt moves to New York City, eager to prove himself while working on Wall Street. When he’s asked to visit the father of his ex-girlfriend, a billionaire tycoon, his fate is sealed. The revolutionary company, Nu-En, launches a radical innovation, an energy that will allow every person on the planet access to power. Only it doesn’t perform as anticipated. Harnessing the ocean has consequences, and highly dangerous creatures emerge from the depths. Soon, the Earth is fracturing, and the world will never be the same.

In the 1800s, a sailing ship crashes off the coast of Norway. In the 1900s, a Zepellin explores an icy canyon in Antarctica. In the far future, a spaceship sets out for an alien artifact. Each excursion goes horribly wrong. And on every journey, Dr. Silas Coade is the physician, but only Silas seems to realize that these events keep repeating themselves. And it's up to him to figure out why and how. And how to stop it all from happening again.

Tackling some of humanity’s oldest questions along with new quandaries only he could imagine, these stories will change the way you think, feel, and see the world. They are Ted Chiang at his best: profound, sympathetic, revelatory. Ted Chiang tackles some of humanity’s oldest questions along with new quandaries only he could imagine.

Humanity is running out of options. Habitable planets are being destroyed as quickly as they're found and Naira Sharp thinks she knows the reason why. The all-powerful Mercator family has been controlling the exploration of the universe for decades, and exploiting any materials they find along the way under the guise of helping humanity's expansion. But Naira knows the truth, and she plans to bring the whole family down from the inside.

Twelve stories by science-fiction master Stanislaw Lem, nine of them never before published in English.

At first, only a few things are known about the celestial object that astronomers dub Rama. It is huge, weighing more than ten trillion tons. And it is hurtling through the solar system at inconceivable speed. Then a space probe confirms the unthinkable: Rama is no natural object. It is, incredibly, an interstellar spacecraft. Space explorers and planet-bound scientists alike prepare for mankind's first encounter with alien intelligence.

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.

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.

Jim Marlowe and his strange-looking Martian friend, Willis, are allowed to travel only so far. But one day Willis unwittingly tunes in to a treacherous plot that threatens all the colonists on Mars, and it sets Jim off on a terrifying adventure that could save - or destroy - them all.

As Kinnall Darival writes "I" in his journal, he knows this pronoun is forbidden by his people of Manneran because it is too personal. But through the use of a powerful, mind-altering drug, he has learned to understand what people are really feeling and to speak for himself. Now he is compelled to share his message of liberation, regardless of the risk. This science fiction classic is a cult favorite from a Hugo and Nebula Award-winning author.

Edmund Gunderson—former Terran governor of the colony world of Belzagor—returns eight years after the planet has gained independence, drawn back for reasons he can’t quite explain. Things have changed significantly since he left, and he plays his part well—slightly pompous former government official—for the tourists he encounters on the way down. But this is more than a simple sight-seeing visit. As Gunderson comes face-to-face with the consequences of his former attitudes and actions, he finds himself on a journey—both physical and spiritual—to the legendary mountain of rebirth.

It’s 2059 and Jud Elliott—former law clerk and failed Harvard history student—is at loose ends. Having left his previous job out of boredom, he finally takes a position as a Time Courier showing tourists around medieval and ancient Byzantium. Maybe that unfinished Masters degree will come in handy after all … Jud is careful and he (mostly) plays by the rules, not wanting to get on the wrong side of the Time Patrol. But, on one trip up the line, he meets and falls in love with his great-great-multi-great grandmother and suddenly the rules don’t seem as important anymore.

What would happen if Imperial Rome never fell? Roma Eterna, spanning fifteen hundred years of global history, follows the reign of the Roman Empire from its inception to the present day. Empire continues to expand, creeping across the globe and through the annals of history from the conquest of the Mayans to the first circumnavigational voyage, and finally the attempt of the Hebrews to flee Rome’s tyranny by escaping to another planet.

Captured by pirates and brought to the west coast of Africa, young British seaman Andrew Battell longs for his home in seventeenth-century England. His only hope of returning is to work hard and be awarded freedom by his Portuguese captors—a freedom he is consistently denied. As he is moved farther and farther inland, away from the coast and any hope of a boat back to England, Battell’s dreams of freedom begin to dwindle. Finally, taking matters into his own hands, he escapes and takes sanctuary among the Jaqqas, a tribe of cannibalistic warriors lead by the sinister Lord of Darkness.