Hard Science Fiction Space Opera

While recovering from the physical and emotional wounds he sustained in Challenger's Hope, Nick Seafort is named as the liaison between the wealthy planters of Hope Nation and the United Nations Navy. The lurking, acid-spewing, fish-shaped aliens are a real threat, and everyone is on edge. When the fleet returns to Earth, dissent grows among the people of Hope Nation, who feel abandoned by the military and left at the mercy of the alien horde.

Fleeing Earth after an alien invasion, the human race stands on the threshold of evolution. Their new home is Luna, a moon colony blessed with creature comforts, prolonged lifespans, digital memories, and instant sex changes. But the people of Luna are bored, restless, suicidal - and so is the computer that monitors their existence.

In the early 22nd century, humanity has spread through the solar system - and their electromagnetic signals have traveled hundreds of light years. An alien race called the Oghaldzon has decided that mankind is dangerously insane...and must be forcibly taken under control. The invasion fleet's technology is decades ahead of Earth's best. They have more ships than the human fleets combined, and a seemingly-inexhaustible number of ground troops. And they're not afraid to kill billions of people.

It's been a year of upheaval since Bren Cameron's return from space - a year since he and the aiji-dowager, one of his most powerful atevi allies, returned home from their two-year interstellar mission to find the government overthrown and their world in chaos. Now, at last, things on the atevi world seem to be on the right track, and Bren hopes that life may soon become much more tranquil. But something is coming, quietly, stealthily - just the first ominous twinkle of a new star in the heavens....

The Year is 2040. The Marines have landed on Mars to guard the unearthed secrets of an ancient and dangerous alien race: Ourselves. Scientists have discovered something astonishing in the subterranean ruins of a sprawling Martian city: startling evidence of an alternative history that threatens to split humanity into opposing factions and plunge the Earth into chaos and war.

It's coming up on Cajeiri's birthday. The boy has been promised he can have the young human children he knew from his voyage sent down from the space station for a two week stay. But there's a far darker business going on in the background - a major split compromising the Assassins' Guild, which furnishes security and law enforcement to the whole continent. Tabini's consort's own father has been barred from court, and may be involved in a new conspiracy against him.

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.

Centuries after a war with the Mutes, the first aliens to be encountered by humankind, a startling new discovery in the far reaches of the Orion Nebula appears. On a planet with conditions favorable to life, explorer vessel The Columbia comes across a small town seemingly inhabited by an intelligent species not yet discovered. But when a highly publicized follow-up mission is sent to make contact mere months later, the entire town has vanished, leaving no trace—or such is presumed to be the case until Alex Benedict and his archaeological crew show up to investigate.

Lee's parents and their business partner, Gordon, found a class A habitable planet. They thought their quest as explorers was over and they'd live a life of ease. But before they could return and register their claim, Lee's parents died doing a survey of the surface. That left Lee two-thirds owner of the claim and their partner Gordon obligated by his word with her parents to raise Lee. She had grown up aboard the ship with her uncle Gordon and he was the only family she'd ever known. Him adopting her was an obvious arrangement to them.

In the far future among the colonized worlds of the galaxy, there's a war going on between the majority of civilized worlds and a colonial theocracy. Trystin Desoll grows up fighting against religious fanatics and becomes a hero, a first-class pilot, then, amazingly, a spy. What do you do if you're a relatively humane soldier fighting millions of suicidal volunteers on the other side who know that they are utterly right, and you are utterly wrong, with no middle ground? Trystin Desoll has an idea.

The third book in the Web Shifter's Library series returns to the adventures of Esen, a shape-shifting alien who must navigate the perils of a hostile universe.

In Battle Station, Kyle Riggs faces new challenges, new alien fleets, and learns the secrets behind the war he has been fighting for years. In the fifth book of the Star Force Series, the Eden system is in humanity's grasp, but can they keep it? Star Force is weak after a long war, and many yearn to go home. Knowing the machines will return with a new armada eventually, Riggs seeks a more permanent solution. Along the way, worlds are won and lost, millions perish, and great truths are revealed.

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.

The year is 2085, and humanity has spread throughout the solar system, a stable lunar colony is agitating for independence, and lunar tourism is on the rise. Against this background, professional "Close Protection" specialist Scotty Griffin, fresh off a disastrous assignment, is offered the opportunity of a lifetime: to shepherd the teenaged heir to the Republic of Kikaya on a fabulous vacation. Ali Kikaya will participate in the first live-action role playing game conducted on the Moon itself.

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.

Two years after the initial invasion of Hayden's World, the newly reinforced Hayden Militia is in a state of stalemate with the remaining enemy forces, but neither side is content to leave things at that. The alien alliance has dispatched their varsity to clean up the resistance on Hayden while the USF has officially activated Task Force V, the latest and most advanced combat ships built by humans. In the end there are some things you decide in the skies, but some can be settled only in the mud.

Captain Keyes has succeeded in forging an uneasy alliance - at the cost of making some powerful enemies. Now, he's wanted throughout the galaxy. Even worse: they're after his ship. His enemies inside the UHF have realized that only the Providence stands even a slight chance of stopping them.

Masoul wasn't just an uprising; it was the starting of a war. Harmony didn't start on Masoul; they were using it as a testing ground. Moretti has a lead on from where Harmony might have come. First, they need to defeat Harmony's forces in Osdal. Nerva's not going to throw his people at Harmony; this is not just a colonist uprising, this is a well-armed and well-backed military. They need more information. It comes down to the Triple-Twos to find out that information. Once again, the Victor brothers and their platoon will be right at the heart of Harmony.

In 2118 the first daring mission to another star, Tau Ceti - 12 light-years away - is launched. Tom Hites and Harry Cosgrove command the starship Endeavour on an epic journey to solve the Fermi paradox. From the first nearly disastrous steps on a distant world, their quest takes them further than they ever imagined.

GSI (Gettnor Space Industries) is beginning to investigate our solar system and mine the asteroids. Aircraft and automobile companies are beginning to switch over to thrusters from their more traditional products. New uses for thrusters are popping up in the healthcare and sports industries. However, at Epsilon Eridani, a race of aliens has so overpopulated their own solar system that they must move many tens of billions of their people to another system before overcrowding destroys them.