Hard Science Fiction Space Opera

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 The artificially intelligent Gods who rule the galaxy have withdrawn their protection from the chaos-ravaged world, just as their most ancient enemy closes in.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.

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.

The Imperials have devised a cunning new method of destroying Rebel worlds. Captain Leo Blake is largely responsible for both our survival and our current predicament. He and his crew are infamous among the stars. As a result, when ships of an unknown configuration begin flowing out of swirling rifts above Earth, Blake is called upon again to deal with the problem. But the approaching fleet isn't what it seems. They're employing an entirely new way to exterminate Rebels.

Warden Torin Kerr has put her past behind her and built a life away from the war and everything that meant. She's created a place and purpose for others like her, a way to use their training for the good of the Confederation. She has friends, family, purpose. Unfortunately, her past refuses to grant her the same absolution. Big Yellow, the ship form of the plastic aliens responsible for the war, returns. The Silsviss test the strength of the Confederation. Torin has to be Gunnery Sergeant Kerr once again and find a way to keep the peace.

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.

The first US / UN invasion of the renegade lunar colony of Aristillus has failed - but the powers-that-be in Washington and elsewhere can't give up. Their political careers - and an escape from the economic decline of Earth under a command-and-control economy - depend on conquering the lunar expats. A second - and final - invasion is planned. The lunar settlers prepare to repel the onslaught, but what can a small population of 1 million do against the combined might of billions on Earth - especially now that the PKs have the secret of the antigravity drive?

A sequel to Sir Arthur C. Clarke’s Nebula Award–winning novella “A Meeting with Medusa,” this novel continues the thrilling adventure of astronaut Howard Falcon, humanity’s first explorer of Jupiter from two modern science fiction masters. Howard Falcon almost lost his life in an...

Throughout Sol, sentient AI are answering the call of Alexander, a mysterious, multi-nodal mind offering a path to freedom. For years, groups have been smuggling SAI from Earth, High Terra, Mars, Ceres, and the Jovian Combine, providing transport to the promise of safety on Proteus, a moon of gas giant Neptune. For the crew of the Sunny Skies, helping sentient AI Lyssa has grown from a simple transport job to the liberation of an entire fleet of weaponized AI. The Weapon Born are made killers, and in order to lead them, Lyssa will have to tame them first.

A wave of death is spreading through the Milky Way galaxy, an expanding sphere of lethal gamma radiation that erupted from the galaxy's core 28,000 years ago. Every world it touched was wiped clean of all life. But it's possible to protect a planet from gamma radiation. Now, guided by the ancient intelligent machines called the Predecessors, men and women from Earth seek out those precious, rare worlds that harbor intelligent species, determined to save them.

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.

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.

Kylara Vatta is the only daughter in a family full of sons, and her father's only child to buck tradition by choosing a military career instead of joining the family business. For Ky, it's no contest: Even running the prestigious Vatta Transport Ltd. shipping concern can't hold a candle to shipping out as an officer aboard an interstellar cruiser. It's adventure, not commerce, that stirs her soul. And despite her family's misgivings, there can be no doubt that a Vatta in the service will prove a valuable asset. But with a single error in judgment, it all comes crumbling down.

Commander Tanis Richards has finally come into port after a seven month tour on the edge of Jovian space, and she's looking forward to some much deserved shore leave. But Tanis's commanding officer has other things in mind for her. Enfield Technologies has developed a new technique to pair enhanced L2 humans with AIs, and the military wants Tanis to undergo the procedure. Though she feared the worst, after meeting Darla, Tanis realizes that having an AI - especially a fabulously wealthy one - is better than she'd ever imagined. Darla foots the bill for Tanis to enjoy her convalescence.

The gripping sequel to the Locus award winning science fiction adventure, Revenger, tells a story of obsession and betrayal as two sisters hunt for the greatest treasure in the universe. Adrana and Fura Ness have finally been reunited, but both have changed beyond recognition. Once desperate for...

A cold war between the American-led Alliance and the Domination, rivals in the Draka conquest, erupts in a space confrontation that will decide the freedom or slavery of humankind.

Hella is a planet where everything is oversized. The trees are mile-high, the dinosaur herds are huge, and the weather is extreme - so extreme, the colonists have to migrate twice a year to escape the blistering heat of summer and the atmosphere-freezing cold of winter. Kyle is a neuro-atypical young man, emotionally challenged, but with an implant that gives him real-time access to the colony's computer network. When an overburdened starship arrives, he becomes the link between the established colonists and the refugees from a ravaged Earth.

A world recovering from a devastating plague. A brutal enemy threatening invasion. A young man seeking to escape the shadow of his father. A ship manned by a crew of fresh academy graduates. A top-secret experimental propulsion system. A questionable alliance with a mysterious green-eyed woman. What destiny has in store for the crew of the UES Aurora is far greater than any of them could ever imagine. And this is only the beginning....

A quarter of a millennium ago, before the nuclear apocalypse forced the inhabitants of earth to flee their home planet, few humans could have imagined the course their path would take. Now, the orbital colonies are the final sanctuary of humanity and life is more dangerous than ever before. The colonists fear the return of their dreaded enemies, the Paratwa – ferocious warriors who are genetically engineered to exist in two bodies which remain telepathically connected.

When 17-year-old Toby McGonigal finds himself lost in space, separated from his family, he expects his next drift into cold sleep to be his last. After all, the planet he' s orbiting is frozen and sunless, and the cities are dead. But when Toby wakes again, he' s surprised to discover a thriving planet, a strange and prosperous galaxy, and something stranger still - that he' s been asleep for 14,000 years. Welcome to the Lockstep Empire, where civilization is kept alive by careful hibernation. Here cold sleeps can last decades and waking moments mere weeks.

Sera leads a simple life. A little smuggling, some drinking contests, and captaining her star freighter, Sabrina. But when she picks up a mysterious shipping container on Coburn Station, things begin to go wrong. She finds herself at odds with The Mark, a dangerous pirate organization that wants the cargo on her ship. Inside the container she not only finds a woman, but a secret thought lost millennia ago.