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United Nations Special Operations Command sent an elite expeditionary force of soldiers and pilots out on a simple recon mission, and somehow along the way they sparked an alien civil war. Now the not-at-all-merry band of pirates is in desperate trouble, again. Their stolen alien starship is falling apart, thousands of light years from home. The ancient alien AI they nicknamed Skippy is apparently dead, and even if they can by some miracle revive him, he might never be the same.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

While the crew of the starship Flying Dutchman have been trying to assure that hostile aliens do not have access to Earth, the UN Expeditionary Force has been stranded on the planet they nicknamed "Paradise". The Flying Dutchman is headed back out on another mission, and the UN wants the ship to find out the status of the humans on Paradise. But Colonel Joe Bishop warns that they might not like what they find, and they can't do anything about it without endangering Earth.

Colonel Joe Bishop made a promise and he's going to keep it; taking the captured alien starship Flying Dutchman back out. He doesn't agree when the UN decides to send almost 70 elite Special Operations troops, hotshot pilots, and scientists with him; the mission is a fool's errand he doesn't expect to ever return from. At least, this time, the Earth is safe, right? Not so much.

Outer Space, Inner Lands includes many of the best known Ursula K. Le Guin nonrealistic stories (such as "The Ones Who Walk Away from Omelas," "Semley' s Necklace," and "She Unnames Them") which have shaped the way many listeners see the world. She gives voice to the voiceless, hope to the outsider, and speaks truth to power - all the time maintaining her independence and sense of humor.

Sci-fi's favorite antisocial AI is back on a mission. The case against the too-big-to-fail GrayCris Corporation is floundering, and more importantly, authorities are beginning to ask more questions about where Dr. Mensah's SecUnit is. And Murderbot would rather those questions went away. For good. Martha Wells' Rogue Protocol is the third in the Murderbot Diaries series, starring a humanlike android who keeps getting sucked back into adventure after adventure, though it just wants to be left alone, away from humanity and small talk.

Golden Son continues the stunning saga of Darrow, a rebel forged by tragedy, battling to lead his oppressed people to freedom from the overlords of a brutal elitist future built on lies. Now fully embedded among the Gold ruling class, Darrow continues his work to bring down Society from within.

Here, Simmons returns to this richly imagined world of technological achievement, excitement, wonder and fear. Endymion is a story about love and memory, triumph and terror - an instant candidate for the field's highest honors.

When Holly Winseed wakes up in a hospital room, her memory compromised and a new identity imposed on her, a team of government agents wastes no time stating their objective. With intent to infiltrate and defeat the terrorist group ICON, the agents tell Holly that she is now a Provisional Replica and has one week to hunt down and kill her Original for the murder of her husband, Jonathan. If she succeeds, she’ll assume her Original’s place in society. If she fails, her life will end.

The First Foundation survived two centuries of barbarism as the once-mighty Galactic Empire descended into chaos. Now it must prepare for war against the remnants of the Empire as the Imperial fleet advances on their planet, Terminus. Hari Seldon predicted this war; he even prepared his Foundation for it. But he couldn’t foresee the birth of the mutant Mule. In possession of a power which reduces fearsome opposition to devoted slaves, the Mule poses a terrible threat to Seldon’s Foundation.

Arthur Dent hadn't had a day as bad as this since the Earth had been blown up. Depressed and alone, Arthur finally settles on the small planet Lamuella and becomes a sandwich maker. Looking forward to a quiet life, his plans are thrown awry by the unexpected arrival of his daughter. There’s nothing worse than a frustrated teenager with a copy of the Hitchhiker’s Guide to the Galaxy in their hands. When she runs away, Arthur goes after her determined to save her from the horrors of the universe. After all - he’s encountered most of them before.… Volume Five in the Trilogy of Five.

Led by the merciless Tempestor Traxel, the Scions of First Eradicant squad drop directly into the fires of a global civil war. Joined by a commissar who personifies the suffering of his past and facing a foe from the darkest days of the Imperium, Traxel's fracturing psyche places the entire world at risk. On Rilis, Traxel will face the foe that broke him. This time, there is no price he will not pay.

There is a great disturbance in the Force. From the sleek ships of the glimmering Coruscant skyscape to the lush gardens of pastoral Naboo, dissent is roiling. The Republic is failing, even under the leadership of Supreme Chancellor Palpatine, elected 10 years earlier to save the crumbling government. Separatists threaten war, and the Senate is hopelessly divided, unable to determine whether to raise an army for battle or keep the fragile peace.

The Story of the Late Mr. Elvesham is a short story by H. G. Wells. Herbert George "H. G." Wells (21 September 1866 - 13 August 1946) was an English writer, now best known for his work in the science fiction genre. He was also a prolific writer in many other genres, including contemporary novels, history, politics and social commentary, even writing textbooks and rules for war games. Wells is sometimes called "The Father of Science Fiction", as are Jules Verne and Hugo Gernsback.

Whilst working on a spreadsheet for a New York-based PR firm, Gerald has his consciousness uploaded into his company's Slack channel. He posts for help, but his colleagues assume it's an elaborate joke to exploit the new working-from-home policy and, now that Gerald's productivity is through the roof, his bosses are only too happy to let him work from...wherever he says he is. Faced with the looming abyss of a disembodied life online, Gerald enlists co-worker Pradeep to care for his body and Slackbot, the service's AI assistant, to help him navigate his new digital reality.

The Indomitus Crusade continues its war across the stars. The primarch Roboute Guilliman has finally broken through the orkish threat bedevilling the sectors near Fenris, and makes ready to push on his bid to stabilise the Imperium Sanctus—but old and bitter foes stand in his way. Kor Phaeron, the Dark Cardinal, threatens the previously stable core of the Segmentum Solar. Waves of rebellion instigated by his infiltrating priests suggest an imminent, large-scale invasion by the Word Bearers Legion.

Exiled from the Ultramarines Chapter by Marneus Calgar, Captain Uriel Ventris ventures deep into the dreaded Eye of Terror to atone for his disgrace. There, Uriel must unleash the Emperor's vengeance upon the followers of the Dark Gods and bring His divine light to this area of darkness. But a far more terrible foe dwells within these worlds of insanity: the ancient Chaos Space Marine Legions. With dishonour behind him and certain death ahead, Uriel must gather every ounce of courage if he is to survive and regain his honour!

October 2559. With the galaxy in the suffocating grip of a renegade artificial intelligence, another perilous threat has quietly emerged in the shadows: The Keepers of the One Freedom, a fanatical and merciless Covenant splinter group, has made its way beyond the borders of the galaxy to an ancient Forerunner installation known as the Ark. Led by an infamous Brute named Castor, the Keepers intend to achieve what the Covenant, in all its might, failed to: Activate Halo and take the last steps on the path of the Great Journey into transcendence.

The skitarii are the soldiers of the Machine God, the tireless legions of the Adeptus Mechanicus. Holy warriors, they carry the word of the Omnissiah across the galaxy, destroying impure machines and spearheading the Quest for Knowledge. A discovery of ancient technology sends a skitarii legion into battle on a forge world overrun by Chaos. When a cataclysm cuts him off from his tech-priest overseers, Stroika must rally his forces and battle both corrupt machines and Chaos Space Marines.

Army Air Force nurse Matilda MacElroy interviewed the pilot of the UFO that crashed at Roswell, NM, in 1947, who revealed that 3,000 members of "The Domain" were attacked and captured by forces of the Old Empire in 5965 BCE. They were given amnesia and sent to Earth to live as humans. The Domain Force deployed a mission to contact and recover these lost personnel from Earth. Amnesia/thought-control mechanisms are installed around Earth to ensure that it remains a secret prison planet under the control of the Brothers of The Serpent.