Hard Science Fiction Space

Nick Morrison always wanted to be an astronaut. When a start-up company recruits him to build a lunar launch system at the moon’s south pole, Nick gladly leaves behind his troubled life on Earth—but Nick doesn’t know that the company is in financial and legal trouble. Deprived of support from Earth, the team on the moon must figure out how to survive on their own. Worse yet, there’s another base at the lunar south pole, run by a ruthless contractor who has big plans for the moon...and for Earth.

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.

Time is running out for the planet Jai. The artificially intelligent Gods who rule the galaxy have withdrawn their protection from the chaos-ravaged world, just as their most ancient enemy closes in. For Yasira Shien, who has devoted herself to the fragile planet's nascent rebellion, it's time to do or die—and the odds are overwhelming. Enter Dr. Evianna Talirr.

One of the greatest science-fiction epics ever written, John Varley's Titan, Wizard, and Demon comprise a groundbreaking trilogy that will live forever. Human explorers have entered the sprawling mind of the alien Gaea. Now they must fight her will. For she is much too powerful. And definitely insane....

The world’s most destructive spacecraft is about to get hijacked.Virago is the codename for a top secret project between ACE Corp and the US Space Force. Its goal is to deploy the first fusion-powered battleship to ensure American domination of any potential conflict in space. There’s only one problem. Virago has been stolen. The world is now at the brink of war as the hijacked spacecraft forges a path of destruction across known space. The task to intercept and retake this dangerous adversary falls on corporate fixer Stilicho Jones and NASA Special Agent Darian Arante. This time the ...

One soldier. Armed. Dangerous. And Lost. It was the biggest raid in the history of Dynamic Operations. Cryne had trained his entire career for this. One second, he was en route to the enemy’s capital via an experimental transport system; the next, he was alone in an empty forest. Something was off. Way off. In need of answers and a way home, Cryne will have to rely on years of training and combat skills to get himself back to where he belongs. If that’s even possible….

When a human team is sent to scout a few hundred light-years in front of the death wave, it encounters a civilization far in advance of our own, a civilization of machine intelligences.These sentient, intelligent machines have existed for eons and have survived earlier "death waves" - gamma-ray bursts from the core of the galaxy. They are totally self-sufficient, completely certain that the death wave cannot harm them, and utterly uninterested in helping to save other civilizations.

They were sent to build a utopia, but all they found on Mars was death. Frank Kitteridge has been abandoned. But XO, the greedy - and ultimately murderous - corporate architects of humanity's first Mars base made a costly mistake when they left him there: They left him alive. Using his skills and his wits, he's going to find a way back home even if it kills him. Little does he know that Mars isn't completely empty. Just over the mountain, there's another XO base where things are going terribly, catastrophically wrong.

Commander Scott McNabb, of the science vessel Hermes, is three years into a five-year-long survey of the asteroid belt. It’s an excruciatingly dull mission, yet it keeps him far away from the agencies that are chasing him down. However, his fortunes change, along with the other four crew members, when they discover a derelict spaceship in orbit around a binary asteroid. Scott’s share of the salvage would be enough to clear his name and start a new life.

On the far side of known human space, the Marines are under siege, battling the relentless servant races of the Sh'daar aggressor. With a task force stripped to the bone and the Terran Confederation of States racked by dissent, rogue Admiral Alexander Koenig must make the momentous decision that will seal his fate and the fate of humankind.

When the Colony on Hayden's world went black, a team was sent to investigate. It was supposed to be a training mission: skip in, find out the Casimir Transmitter had gone dead, report back and wait for resupply from the Fleet. By the time the only surviving member of the team made landfall, it was spectacularly clear that this wasn't a training mission.

One shot at saving a world. One life to give. When things—dark things—swoop and crawl from the pollution, something must be done to prolong the life expectancy of Trenton’s dying three-tiered world. Recruited for a last desperate attempt at ending the contamination, he takes on a grueling and perilous climb to the top of a colossal tower perched atop a high plateau. His mission; steal vital transporter equipment. With the conditional aid of sketchy underground technology, Trenton abandons the safety of his familiar biosphere, a hardcore sacrifice he accepts for the slim hope of ...

Captain Jason Burke is a man apart, and not just because he's the only of his kind for thousands of light-years in any direction. The changes to his body and to his genetic code have made him faster, stronger, more able to survive in his dangerous occupation...but they've also ensured that he'll never truly fit in with others of his species. He always assumed he would live and die with his crew and never lay eyes on another human again. He was wrong.

For five centuries, human life has been restricted to Earth, while posthuman descendants called alloys freely explore the galaxy. But when the Earthlike planet of Meru is discovered, two unlikely companions venture forth to test the habitability of this unoccupied new world and the future of human-alloy relations. For Jayanthi, the adopted human child of alloy parents, it’s an opportunity to rectify the ancient reputation of her species as avaricious and destructive, and to give humanity a new place in the universe.

Gunnery Sergeant Torin Kerr had been the very model of a Confederation Marine. No one who'd ever served with her could imagine any circumstance that would see her walking away from the Corps. But that was before Torin learned the truth about the war the Confederation was fighting...before she'd been declared dead and had spent time in a prison that shouldn't exist...before she'd learned about the "plastic" beings who were really behind the war between the Confederation and the Others. That was when Torin left the military for good.

Two years have passed since comet Anduru skimmed the clouds of Saturn on its way to Earth. Kath and Nolan are looking for answers, trying to find ways to protect Earth from the possibility of an invasive alien species overrunning the planet.

There is an unseen power in the universe - a terrible force that was dominating the galaxy tens of thousands of years before the warlike Sh'daar were even aware of the existence of Sol and its planets. As humankind approaches the Singularity, when transcendence will be achieved through technology, contact will be made. In the wake of the near destruction of the solar system, the political powers on Earth seek a separate peace with an inscrutable alien life form that no one has ever seen.

A woman having a psychotic episode, talking with her oldest friend from college who’s calming her, sees Earth devoid of humans is populated with monsters and discovers two secrets, he’s her “father” and…

First in a brand-new Foreigner trilogy by Hugo Award-winning author C. J. Cherryh. Tracker is the 16th installment of C. J. Cherryh's acclaimed Foreigner series.

The Earth Cruiser Agamemnon is destroyed in combat, and the search for answers begins. The veteran crew of Borag gets the assignment, and the race is on. Sgt. Starn of Red Company must visit the disaster site, perform a search and rescue mission, and return to Mars alive. What kind of technology could destroy an Earth warship so easily? Why is a single life-pod found floating, transponder pinging away—with no one aboard? Most important of all, what is the prowling alien super-ship going to do next?