Showing titles in Hard Science Fiction

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.

March 15th, Earth Year 2290. The day the aliens returned. The memories are still fresh. Of colonies burning. Of millions dying in agony. Fifty years later, we’ve built up our strength. Using a wormhole, we colonized both sides of the galaxy. It was the worst mistake we could have made. Our enemy has returned and the wormhole has collapsed. Commander Thatcher finds himself on the wrong side of the divide. Separated from his pregnant wife by countless light years. He’s just been given command of a light armored cruiser. His first command.

Wally K. Daly was a prolific, award-winning dramatist, whose writing credits included Casualty, Juliet Bravo and Doctor Who. He wrote 38 radio plays during his 30-year career, across a range of genres including comedy, horror and science fiction. This collection includes his best-known SF serial, The Scream Trilogy, and three other thrilling sci-fi dramas.

One starship will either save Earth or destroy her. A century ago our star erupted, destroying Earth's wormhole network and closing off trade with her colonized planets. After being out of contact with the younger worlds for so many years, Humanity is shocked when a huge ship appears at the edge of the solar system. Our outdated navy investigates, both curious and fearful. What they learn from the massive vessel shocks the planet.

Six months have passed since the release of Nexus 5. The world is a different, more dangerous place. In the USA, the freedom fighters of the Post-Human Liberation Front use Nexus to turn men and women into human time bombs aimed at the President and his allies. The first blows in the war between human and post-human have been struck.

In the second book of the Star Force series, Kyle Riggs has another bad year. The Nano ships have a new mission--one that sentences their pilots to death. Meanwhile, the governments of Earth want to steal Star Force's Nano technology for their own. Worst of all, Earth has made a promise to the Macros, and the machines are coming to collect.

From New York Times bestselling author Mira Grant comes the second book in the terrifying Parasitology series. The SymboGen-designed tapeworms were created to relieve humanity of disease and sickness. But the implants in the majority of the world's population began attacking their hosts, turning...

Astronomers in England and America have made a terrifying discovery: an ominous black cloud the size of Jupiter is travelling straight towards our solar system. If their calculations are correct, the cloud’s path will bring it between the Earth and the Sun, blocking out the Sun’s rays and threatening unimaginable consequences for our planet.

The first of the acclaimed Vatta's War books, the exciting military science fiction series that features a swashbuckling spaceship-captain heroine who mixes commerce with combat.

An original novel based on the thrilling new Star Trek movies! Based on the “Kelvin Universe” movie saga! Captain James T. Kirk and the Enterprise crew escort Spock’s father, Ambassador Sarek of Vulcan, to a dilithium-rich planet called Akiron. They arrive to find this world under siege by...

The Phage War had been a devastating conflict for the Terran Confederacy. Even with the destruction of their terrifying, implacable foe, humanity is still reeling. Political alliances are crumbling, and their mighty fleet is in tatters. There is nothing to celebrate, even after such a complete victory. They soon learn that there are other stellar neighbors - and they've been watching the conflict with great interest. One species comes with an offer of friendship and alliance, but humanity is weary and distrustful.

Earth’s entire fleet and all her legions are conscripted by the Galactics. Centurion McGill of Legion Varus is among countless troops pressed into service as cannon fodder for the Empire. Not everyone on Earth is happy with the demands of the Galactics. Earth has built up her military for decades, and now she might lose everything in a foreign war no one understands. As the man who has killed more Mogwa than any other human in history, McGill is approached and given a mission. He has a fateful decision to make.

The Dusahn Empire has been contained for the moment. But there is much work to be done in order to keep them from reasserting their dominance over the Pentaurus sector. As much as Captain Scott wants to see the Empire destroyed, he may have no choice but to find a way to coexist with them.

Two irresistible forces are rushing together to crush the planet Grayson between them, and only one woman, uncertain of her capabilities, weary unto death, and marked for murder -stands between her adopted planet and its devastation.

Over two hundred years after the first colonists landed on Pax, a new set of explorers arrives from Earth on what they claim is a temporary scientific mission. But the Earthlings misunderstand the nature of the Pax settlement and its real leader. Even as Stevland attempts to protect his human tools, a more insidious enemy than the Earthlings makes itself known. Stevland is not the apex species on Pax.

In 2034, the stars went out. An unknown agency surrounded the solar system with an impenetrable barrier, concealing the universe from humanity’s gaze. In 2067, Nick Stavrianos is hired to investigate the disappearance of a mentally disabled woman, Laura Andrews, from the institution where she was being cared for. Aided by a skull full of neural modifications, he follows her trail to the Republic of New Hong Kong, where an organization known as the Ensemble has uncovered Laura’s extraordinary secret: An ability that could transform the world.

Offered for the first time as a box set, a number one best-selling trilogy from Bobby Akart. In Asteroid Discovery, Gunner Fox finds himself in a place of darkness, without a reason to live. Until now. An asteroid is on a collision course with our planet. Gunner Fox is on a collision course with death. In a time of desperation NASA needs the most fearless fighter pilot for a life or death mission. They need Gunner Fox. Can they convince the man who blames them for taking his wife, help them divert the asteroid hurtling to earth and avoid another extinction level event?

From the moment Sam Newman and fourteen others awaken inside metal coffins next to the burning wreckage of a spacecraft, they face a constant struggle to stay alive on a seemingly uninhabited planet light-years from home. Worse, the last any of them remember, they were back home on Earth—at a time when interstellar travel was little more than a distant pipe dream. Survival means finding out who-or what-brought them to this place. Yet what few answers they find amidst the steaming jungles and the ruins of that distant world defy all logic or sanity.

Upon the ancient drysine moon/city of Defiance, the UFS Phoenix is being rebuilt, but her crew cannot do so in peace. Parren factions jostle for control of not only Defiance, but of the drysine data-core that Phoenix won at such an awful price. But the parren do not lay sole claim to that ancient knowledge, and within the bowels of the machine-city, something long-dead is awakening. While aliens battle, Captain Debogande struggles to decide his next step. Human emissaries beckon him home, while a terrible new threat drives him toward the far edge of Spiral space.

Specialist astronaut Evelyn Slater encounters a small, badly damaged, ancient alien artifact on the first ever space junk elimination mission. Where was it from? Who sent it? International governments impose a security clampdown. Evelyn leads a team of handpicked scientists who make amazing discoveries within the alien device. Secrecy becomes impossible to maintain. When the news is finally released, she becomes embroiled in international politics, worldwide xenophobic hatred, and violence.