Showing titles in Hard Science Fiction

When the inhabitants of a peaceful world are conquered by the bloodthirsty yumens, their existence is irrevocably altered. Forced into servitude, the Athsheans find themselves at the mercy of their brutal masters. Desperation causes the Athsheans, led by Selver, to retaliate against their captors, abandoning their strictures against violence. But in defending their lives, they have endangered the very foundations of their society. For every blow against the invaders is a blow to the humanity of the Athsheans. And once the killing starts, there is no turning back.

The ship survived, but over time, the original crew died out. Their children were left to continue the fight for their home against their sworn enemy, the vicious alien Malibor. They’ve lived their whole lives in space. Their idea of heaven is open air, blue skies, and the quiet of peace. But they'll never have that if they don't take it by force.

From 800 years in the future, a runcible gate is opened into the Polity. Those coming through it have been tasked with taking the alien 'Maker' back to its home civilization in the Small Magellanic cloud. Once these refugees are safely through, the gate itself is rapidly shut down - because something alien is pursuing them. From those who get through, agent Cormac learns that the Maker civilization has been destroyed by a pernicious virus known as the Jain technology.

It is near the end of the 21st century. Persistent war, overpopulation, and climate change have caused poverty and natural disasters like mankind has never known. When a signal offering assistance reaches Earth from an alien entity calling itself the Foundry, humanity plans a mission to the stars for first contact. In the midst of this, Milo Hughes is just another five-year-old boy who wishes nothing more than to doodle with crayons and dig in the dirt, while his parents secretly plot to join the mission—whether they were invited or not.

The enigmatic Greys have returned, bearing a host of stunning revelations regarding their role in Earth’s history, the Pelarans, and humanity’s place in the cosmos. Griffin, openly declaring his allegiance to both Terran Fleet Command and the world he has helped to build, agrees to accompany the Grey ship Ethereal on a high-risk recruiting operation spanning thousands of light years. Their mission: enlist the help of enough Guardian spacecraft to put an end to the out-of-control, tyrannical AI before its forces can reach Earth.

Fifty years ago, Mira, humanity's last hope to find new resources, exited the solar system bound for Proxima Centauri B. Seven years into her mission, all transmissions ceased without warning. Mira and her crew were presumed lost. Humanity, unified during her construction, splintered into insurgency and rebellion.

Sci-fi’s favorite antisocial A.I. 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.

Come back to the Ringworld - the most astonishing feat of engineering ever encountered. A place of untold technological wonders, home to myriad humanoid races, and world of some of the most beloved science fiction stories ever written.

The human Louis Wu; the puppeteer known as the Hindmost; Acolyte, son of the Kzin called Chmeee: legendary beings brought together once again in the defense of the Ringworld. Something is going on with the protectors.

The Hygrometric Dehabitation Region, or the "Zone," is a growing band of rainforest on the equator, where the heat and humidity make it impossible for warm-blooded animals to survive. A human being without protection in the Zone is dead in minutes. Twenty years ago, Marks went into the rainforest with a group of researchers led by Doctor Elaine Fell, to study the extraordinary climate and see if it could be used in agriculture. The only thing she learned was that the Zone was no place for people. There were deaths, and the program was cut short. Now, they're sending her back in.

The explosive conclusion to Nexus and Crux. Global unrest spreads through the US, China, and beyond. Secrets and lies set off shockwaves of anger, rippling from mind to mind. Riot police battle neutrally linked protestors. Armies are mobilized. Political orders fall. Nexus-driven revolution is in here. Against this backdrop a new breed of posthuman children are growing into their powers.

Earth's Zero Asset citizens no longer face extermination. Thanks to Alan Saul, the Committee's despotic network is in ruins, and its robotic enforcers lie dormant. But the ruthless Serene Galahad sees an opportunity to grab power. On Mars, Var Delex fights for Antares Base's survival while the Argus Space Station hurtles towards the red planet. And Var knows whoever, or whatever, trashed Earth is still aboard. She must not only save the base but deal with the first signs of rebellion.

Rebels build a secret base on Green World. Their plan is to attack Earth and retake all the planets the humans have conquered. Hegemony starships gather to strike the Rebels first, but where is their base? As the fleets search, Earth warships trespass into Skay space, igniting a fresh border conflict between rival Galactics. When James McGill stumbles onto the rebel camp, they’re forced to step up their plans. The world goes up in flames. Friends are permed and cities are destroyed as everything spins out of control.

Fleet of Worlds takes a closer look at Human-Puppeteer (Citizen) relations and the events leading up to Niven's first Ringworld novel. Kirsten Quinn-Kovacks is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten's people came from.

In the 25th century, humans have conquered space. The advent of faster-than-light travel has opened up hundreds of habitable planets for colonization, and humans have exploited the virtually limitless space and resources for hundreds of years with impunity. So complacent have they become with the overabundance that armed conflict is a thing of the past, and their machines of war are obsolete and decrepit. What would happen if they were suddenly threatened by a terrifying new enemy?

Two hundred years after a nuclear apocalypse forced humanity to flee earth, humans still remember the most feared warriors of that planet - the Paratwa. These are genetically modified killers who occupy two bodies controlled by one vicious mind. The legendary Paratwa named Reemul, known as the Liege-Killer, was the strongest of them all. Now someone has revived Reemul from stasis and sent him to terrorize the peaceful orbital colonies of Earth. Is this an isolated incident, or has the one who unleashed this terrible power announced a gambit for control over the entire human race?

When a colonist dies in tragic circumstances, just a few sols before a major terraforming experiment, Dr. Jann Malbec begins to suspect that all is not what it seems.

Henry Stasik, an Internal Affairs agent for the globe-spanning Coalition, is no stranger to crooked agents or scandals. He's a truth-junkie. An addict. But when international celebrity Anastasia Danicheva specifically demands his presence at a police station, everything changes. The Coalition, which has brought peace through uniting the world under a single banner, wants her dead. But none of their case against her adds up.

The sky is not the limit. From an alley in New York to an interstellar wormhole, the path to the future looks different for everyone. These cosmic short stories from some of today’s most influential Black authors reveal a universe of possibilities.

A newly repaired ship...A willing and eager crew...A host of new technologies...A long anticipated return home...The crew of the UES Aurora finally has the chance to fulfill their mission, but first they must complete a long and dangerous journey across a thousand light-years of unexplored space.

Following an accident that almost cost him his life, Howard Falcon was not so much saved as he was converted, through the use of prosthetics, into something faster, stronger and smarter...but also slightly less human and more machine than he was. And with this change came an opportunity - that of piloting a mission into Jupiter's atmosphere and ultimately of making first contact with the life forms he discovers there.