Showing titles in Hard Science Fiction

Ransom and Britt attempt to settle into a new life, but a dreadful threat is constantly hanging over their heads. The settlers in Tucson know their time is limited. An invasion is underway. Peggy is adamant they can destroy the Glass, but it will take a trip to another time and place to ensure it remains off. Cedric, under a cloud of doubt, must decide where his true allegiance leans. There is hope—a military base with something that could change the tides of their future. No one seems to have remembered the base exists, but they search for their salvation.

James McGill is called upon for a sabotage mission, one that only a man of his unique talents can handle. Unfortunately, he performs too well, and our enemies from Rigel are enraged. They come for us, and war is declared. When this conflict between the great powers spreads, humanity finds itself swept up in the storm. Can McGill escape this disaster he’s created?

When Simon and Katherine Hawke stumble upon an alien shuttle that has landed on earth, it’ll not only change the course of their lives, but of the entire world. Taking the shuttle into orbit, they discover a much larger ship left adrift with no one on board. Commandeering it, they confirm that we’re not alone in the universe and must prepare the human race for what is about to come. Recruiting from all over the world, they begin to expand their fleet and build a federation to give humans a foothold in the galaxy.

Kibou-daini is a planet obsessed with cheating death. Barrayaran Imperial Auditor Miles Vorkosigan can hardly disapprove—he’s been cheating death his whole life, on the theory that turnabout is fair play. But when a Kibou-daini cryocorp—an immortal company whose job it is to shepherd its all-too-mortal frozen patrons into an unknown future—attempts to expand its franchise into the Barrayaran Empire, Emperor Gregor dispatches his top troubleshooter, Miles, to check it out.

The Ringworld is a landmark engineering achievement, a flat band 3-million-times the surface area of Earth, encircling a distant star. Home to trillions of inhabitants, not all of which are human, and host to amazing technological wonders, the Ringworld is unique in all of the universe.

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.

It’s been 20 years since the quixotic and worldsweary Louis Wu discovered the Ringworld. Now he and SpeakertoAnimals are going back, captives of the Hindmost, a deposed puppeteer leader. With Louis’ help, the Hindmost intends to regain his status by bringing back such extraordinary treasures from the Ringworld that his fellow puppeteers will have to be impressed. But when they arrive, Louis discovers that the Ringworld is no longer stable - and will destroy itself within months. To survive, he must locate the control center of the legendary engineers who built the planet.

The People's Republic of Haven made a tiny mistake when it announced the execution of Honor Harrington. It seemed safe enough. After all, she was already dead. Unfortunately, they were wrong. Now Honor has escaped from the prison planet called Hell and returned to the Manticoran Alliance with a few friends. Almost half a million of them, to be precise including some who know what really happened when the Committee of Public Safety seized power in the PRH.

Merritt Alder is done with Earth. The planet is polluted and overpopulated, and its people are hungry. Earth's first colony, Galena, is a pioneer world 10,000 light years away. It has clean air, unpolluted water, and continents of arable land. Anyone can start a new life…if they can get there. For Merritt, the journey is only the beginning. Obstacles arise every step of the way, forcing compromise and sacrifice. And not everyone on his ship is pure of heart. The bonds he forges on the journey will be the key to surviving on another world—a world anyone has yet to fully explore.

When Streaker - the first starship designed and crewed by dolphins - discovers a derelict ancient armada with evidence of the first sentient species ever, she sets off a war between dozens of galactic races eager to use the information for their own advancement.

For years, Filio Amorosa has had one goal, and only one goal: getting back to Mars. All that matters is finding out what happened on her mission there, and why she can’t remember any of it. But when she finally discovers the truth, it blows her whole world apart. Meanwhile, on Earth, Agatha Devenworth and Pano Hofer have a new mission: Travel from the Human Foundation’s secret underground base to New York to uncover what the enemy is plotting.

Murderbot wasn’t programmed to care. So, its decision to help the only human who ever showed it respect must be a system glitch, right? Having traveled the width of the galaxy to unearth details of its own murderous transgressions, as well as those of the GrayCris Corporation, Murderbot is heading home to help Dr. Mensah—its former owner (protector? friend?)—submit evidence that could prevent GrayCris from destroying more colonists in its never-ending quest for profit. But who’s going to believe a SecUnit gone rogue? And what will become of it when it’s caught?

They hunt us. They bomb our worlds for target practice. A star cluster in the constellation of Orion rotates once every thousand years. Those who rule there have an ancient tradition: When each cycle ends, they train their fleets by spilling the blood of lesser beings. The enemy fleets are coming again. In response, the Rebel Worlds gather their starships to face the terrifying threat, and this time humanity is asked to stand with them.

In a corporate-dominated spacefaring future, planetary missions must be approved and supplied by the Company. Exploratory teams are accompanied by Company-supplied security androids, for their own safety. But in a society where contracts are awarded to the lowest bidder, safety isn’t a primary concern. On a distant planet, a team of scientists are conducting surface tests, shadowed by their Company-supplied ‘droid—a self-aware SecUnit that has hacked its own governor module, and refers to itself (though never out loud) as “Murderbot.”

Signs of life have been found on Titan, Saturn’s largest moon. A group of visionaries led by NASA’s Paula Benacerraf plan a daring one-way mission that will cost them everything. Taking nearly a decade, the billion-mile voyage includes a ‘slingshot’ transit of Venus, a catastrophic solar storm, and a constant struggle to keep the ship and crew functioning. But it is on the icy surface of Titan itself that the true adventure begins. In the orange methane slush, the astronauts will discover the secrets of life’s origins and reach for a human destiny beyond their wildest dreams.

Restoring the empire that had been destroyed 45 years earlier, Emperor Colin finds problems in the genocidal Achuutani and in his children, Sean and Harriet, who have been marooned on a hostile planet.

Kyle Riggs is snatched by an alien spacecraft sometime after midnight. The ship is testing everyone it catches and murdering the weak. The good news is that Kyle keeps passing tests and staying alive. The bad news is the aliens who sent this ship are the nicest ones out there.

Having obliterated entire civilizations, the Torth Majority is now threatening humanity itself. Barreling through deep space—and hunted every dark mile by armadas, saboteurs, and kamikaze armies—the passengers of a refugee streamship must outrun everything they left behind if they hope to stay alive.

Their heroine, Ell Donsaii, has a nerve mutation that’s made her a genius and provided her with astonishing athletic abilities. Her intelligence has let her revolutionize our world with a number of inventions, including instantaneous communications and trans-dimensional portals that deliver fuel, water, food, energy, and people all around the solar system Antigravity is about a new invention that Ell and her husband, Shan, come up with.

How can a colony on Mars survive when the greatest danger on the planet is humanity itself? All contact is lost with the first privately funded colony on Mars during a long and destructive sandstorm. Satellite imagery of the aftermath shows extensive damage to the facility. The 54 colonists who called it home are presumed dead.