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.

    "That they will be what they like. That they will own the land their father gave them.""I live for you," I say sadly.Eo kisses my cheek. "Then you must live for more."Darrow is a Red, a member of the lowest caste in the color-coded society of the future. Like his fellow Reds, he works all day, believing that he and his people are making the surface of Mars livable for future generations.Yet he spends his life willingly, knowing that his blood and sweat will one day result in a better world for his children.But Darrow and his kind have been betrayed. Soon he discovers that humanity already reached the surface generations ago. Vast cities and sprawling parks spread across the planet. Darrow—and Reds like him—are nothing more than slaves to a decadent ruling class.Inspired by a longing for justice, and driven by the memory of lost love, Darrow sacrifices everything to infiltrate the legendary Institute, a proving ground for the dominant Gold caste, where the next generation of humanity's overlords struggle for power. He will be forced to compete for his life and the very future of civilization against the best and most brutal of Society's ruling class. There, he will stop at nothing to bring down his enemies... even if it means he has to become one of them to do so.

    In her eyes, living inside a dome isn’t much better than a prison cell.Still, when Zara commits a crime that has her running scared, jail might be exactly where she’s headed. Instead Zara is recruited into the Honors, an elite team of humans selected by the Leviathan—a race of sentient alien ships—to explore the outer reaches of the universe as their passengers.Zara seizes the chance to flee Earth’s dangers, but when she meets Nadim, the alien ship she’s assigned, Zara starts to feel at home for the first time. But nothing could have prepared her for the dark, ominous truths that lurk behind the alluring glitter of starlight.

    Haimey and her small crew run afoul of pirates at the outer limits of the Milky Way, and find themselves on the run and in possession of universe-changing information.When authorities prove corrupt, Haimey realizes that she is the only one who can protect her galaxy-spanning civilization from the implications of this ancient technology—and the revolutionaries who want to use it for terror and war. Her quest will take her careening from the event horizon of the supermassive black hole at the galaxy’s core to the infinite, empty spaces at its edge.To save everything that matters, she will need to uncover the secrets of ancient intelligences lost to time—and her own lost secrets, which she will wish had remained hidden from her forever.

    We just call it “The Bug War." Everything up to then and still later were "incidents," "patrols," or "police actions." However, you are just as dead if you buy the farm in an "incident" as you are if you buy it in a declared war...In one of Robert A. Heinlein’s most controversial bestsellers, a recruit of the future goes through the toughest boot camp in the Universe—and into battle with the Terran Mobile Infantry against mankind’s most alarming enemy.

    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.

    When William III of England commissioned Capt. William Kidd to command the first expedition to Mars in the late 1600s, they proved that space travel was both possible and profitable. Now, one century later, a plantation in the flourishing British colony on Mars is home to Arabella Ashby. A tomboy who shares her father's deft hand with complex automatons. Being raised on the Martian frontier by her Martian nanny, Arabella is more a wild child than a proper young lady. Something her mother plans to remedy with a move to an exotic world Arabella has never seen: London, England. Arabella soon finds herself trying to navigate an alien world until a dramatic change in her family's circumstances forces her to defy all conventions in order to return to Mars in order to save both her brother and the plantation. To do this, Arabella must pass as a boy on the Diana, a ship serving the Mars Trading Company with a mysterious Indian captain who is intrigued by her knack with automatons. Arabella must weather the naval war between Britain and France, learning how to sail, and a mutinous crew if she hopes to save her brother from certain death.

    . . until her parents relocated to the frontier planet of Sphinx in the far distant Star Kingdom of Manticore. It should have been the perfect new home --- a virgin wilderness full of new species of every sort, just waiting to be discovered. But Sphinx is a far more dangerous place than ultra-civilized Meyerdahl, and Stephanie’s explorations come to a sudden halt when her parents lay down the law: no trips into the bush without adult supervision!Yet Stephanie is a young woman determined to make discoveries, and the biggest one of all awaits her: an intelligent alien species.The forest-dwelling treecats are small, cute, smart, and have a pronounced taste for celery. And they are also very, very deadly when they or their friends are threatened . . . as Stephanie discovers when she comes face-to-face with Sphinx's most lethal predator after a hang-gliding accident.But her discoveries are only beginning, for the treecats are also telepathic and able to bond with certain humans, and Stephanie’s find --- and her first-of-its kind bond with the treecat Climbs Quickly --- land both of them in a fresh torrent of danger. Galactic-sized wealth is at stake, and Stephanie and the treecats are squarely in the path of highly-placed enemies determined to make sure the planet Sphinx remains entirely in human hands, even if that means the extermination of another thinking species.Unfortunately for those enemies, the treecats have saved Stephanie Harrington’s life. She owes them . . . and Stephanie is a young woman who stands by her friends.Which means things are about to get very interesting on Sphinx.

    On Earth, a small band of the few remaining humans pursues a lost past and devastating truth—as four sentient machines depart from Jovian space to investigate, perhaps terminate, the potentially catastrophic emissions emanating from a mountaintop miles above the terraformed surface of the Red Planet.

    Coveted across the known universe, melange is a prize worth killing for...When House Atreides is betrayed, the destruction of Paul’s family will set the boy on a journey toward a destiny greater than he could ever have imagined. And as he evolves into the mysterious man known as Muad’Dib, he will bring to fruition humankind’s most ancient and unattainable dream.***Original, first edition from 1965 can be found here.

    After all, the planet he’s orbiting is frozen and sunless, and the cities are dead. But when Toby wakes again, he’s surprised to discover a thriving planet, a strange and prosperous galaxy, and something stranger still—that he’s been asleep for 14,000 years.Welcome to the Lockstep Empire, where civilization is kept alive by careful hibernation. Here cold sleeps can last decades and waking moments mere weeks. Its citizens survive for millennia, traveling asleep on long voyages between worlds. Not only is Lockstep the new center of the galaxy, but Toby is shocked to learn that the Empire is still ruled by its founding family: his own.Toby’s brother Peter has become a terrible tyrant. Suspicious of the return of his long-lost brother, whose rightful inheritance also controls the lockstep hibernation cycles, Peter sees Toby as a threat to his regime. Now, with the help of a lockstep girl named Corva, Toby must survive the forces of this new Empire, outwit his siblings, and save human civilization.Karl Schroeder's Lockstep is a grand innovation in hard SF space opera.

    Spensa, a teenage girl living among them, longs to be a pilot. When she discovers the wreckage of an ancient ship, she realizes this dream might be possible—assuming she can repair the ship, navigate flight school, and (perhaps most importantly) persuade the strange machine to help her. Because this ship, uniquely, appears to have a soul.

    At least that was the theory American scientists were exploring in an effort to explain the new sources of knowledge the Russians possessed. Perhaps Russian scientists had discovered how to transport themselves back in time in order to learn long-forgotten secrets of the past. That was why young Ross Murdock, above average in intelligence but a belligerently independent nonconformist, found himself on a "hush-hush" government project at a secret base in the Arctic. The very qualities that made him a menace in civilized society were valuable traits in a man who must successfully act the part of a merchant trader of the Beaker people during the Bronze Age.For once they were transferred by time machine to the remote Baltic region where the Russian post was located, Ross and his partner Ashe were swept into a fantastic action-filled adventure involving Russians, superstitious prehistoric men, and the aliens of a lost galactic civilization that demanded every ounce of courage the Americans possessed.Approx. 7 hours

    Humanity's last survivors escaped earth's ruins to find a new home. But when they find it, can their desperation overcome its dangers?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. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them, pristine and unoccupied. New masters have turned it from a refuge into mankind's worst nightmare.Now two civilizations are on a collision course, both testing the boundaries of what they will do to survive. As the fate of humanity hangs in the balance, who are the true heirs of this new Earth?

    In the aftermath, a curious tradition was invented-something to cheer up everyone who was left and bring the shattered worlds together in the spirit of peace, unity, and understanding.Once every cycle, the civilizations gather for the Metagalactic Grand Prix - part gladiatorial contest, part beauty pageant, part concert extravaganza, and part continuation of the wars of the past. Instead of competing in orbital combat, the powerful species that survived face off in a competition of song, dance, or whatever can be physically performed in an intergalactic talent show. The stakes are high for this new game, and everyone is forced to compete.This year, though, humankind has discovered the enormous universe. And while they expected to discover a grand drama of diplomacy, gunships, wormholes, and stoic councils of aliens, they have instead found glitter, lipstick and electric guitars. Mankind will not get to fight for its destiny - they must sing.A one-hit-wonder band of human musicians, dancers and roadies from London - Decibel Jones and the Absolute Zeroes - have been chosen to represent Earth on the greatest stage in the galaxy. And the fate of their species lies in their ability to rock.