Hard Science Fiction Space Opera

As Hari Seldon struggles to perfect his revolutionary theory of psychohistory and ensure a place for humanity among the stars, the great Galactic Empire totters on the brink of apocalyptic collapse. Caught in the maelstrom are Seldon and all he holds dear, pawns in the struggle for dominance. Whoever can control Seldon will control psychohistory - and with it the future of the galaxy.

Throughout the Fourteen Worlds of humanity, no race is as feared and respected as the Dorsai. The ultimate warriors, they are known for their deadly rages, unbreakable honor, and fierce independence. No man rules the Dorsai, but their mastery of the art of war has made them the most valuable mercenaries in the known universe. Donal Graeme is Dorsai, taller and harder than any ordinary man. But he is different as well, with talents that maze even his fellow Dorsai. And once he ventures out into the stars, the future will never be the same....

Earth becomes the target of an imminent cosmic threat Dr. Phil Bright is used to studying weather patterns, not wormholes. But when one of these mysterious tunnels in the space-time continuum appears and threatens Earth’s solar system, he’s pulled into a world far beyond anything anyone ever imagined. Enter a human professor from an unknown galactic kingdom who comes to offer salvation—but at a price—accept King Manay XII as Earth’s undisputed monarch. As Phil grapples with the fate of humanity, government skeptics, and the truth about the alien kingdom’s power, he’s faced ...

Trantor had extended its rule over half the Galaxy, but the other half defied its authority, defending their corrupt fiefdoms with violence and repression. On the planet Florina, the natives labored as slaves for their arrogant masters on nearby Sark. But now both worlds were hurtling toward a cataclysmic doom, and only one man knew the truth - a slave unaware of the secret knowledge locked inside his own brain. Rik had once been a prominent scientist until a psychic probe erased all memories of his past. Now he was a humble laborer in the kyrt mills of Florina.

Detective Elijah Baiey is called to the Spacer world Aurora to solve a bizarre case of roboticide. The prime suspect is a gifted roboticist who had the means, the motive, and the opportunity to commit the crime. There's only one catch: Baley and his positronic partner, R. Daneel Olivaw, must prove the man innocent. For in a case of political intrigue and love between woman and robot gone tragically wrong, there's more at stake than simple justice. This time Baley's career, his life, and Earth's right to pioneer the Galaxy lie in the delicate balance.

Captain Jackson Wolfe never thought he'd see the end of the Phage War in his lifetime. The enemy was too powerful, too numerous, and utterly determined to exterminate humanity. But the appearance of a new ally in the fight has changed all of that. For the first time since the original incursion, Wolfe thinks that maybe there's a chance to stop their implacable enemy before they have the chance to wipe out any more human planets.

Long before Earth began conquering her neighboring stars, Legion Varus was deployed on Tau Ceti. Valuable and highly illegal treasures were stolen during the campaign, but McGill never gave it a second thought. The Tau haven’t forgotten him, however. For decades, they’ve hunted and plotted, and at last they’ve found the pirate who robbed them. Tau agents invade Earth seeking revenge and profit. Caught up in violence and intrigue, McGill is given the task of finding out where the loot has gone and who was responsible for the theft in the first place.

The Marva Collins runs into unexpected problems a long way from port. Faced with some hard decisions and uncertain about the choices, Ishmael has to roll the dice with inadequate information.

One thousand years after Earth was destroyed in an unprovoked attack, humanity has emerged victorious from a series of terrible wars to assure its place in the galaxy. But during celebrations on humanity’s new homeworld, the legendary Captain Pantillo of the battle carrier Phoenix is court-martialed then killed, and his deputy, Lieutenant Commander Erik Debogande, the heir to humanity’s most powerful industrial family, is framed for his murder.

Carrie Faulkner is now in command of the Milky Way Alliance while Luke Blackburn is absent. Her orders? Destroy as many of the murderous Bakkui as possible! Her latest mission results in over three hundred million kills! Unfortunately, they were all friendly. After such a spectacular failure, the Warlord relieves her of duty. But still, the war goes on, and someone needs to investigate the source of the unstoppable Bakkui menace. GOING DEEP BEHIND ENEMY LINES IS A SUICIDAL MISSION AT BEST. Devastated by her failure, Carrie decides she’s the perfect fit for the job. With help from Sadie, ...

Two expanding interstellar powers are about to meet in battle. After the collapse of the Cephalopod Kingdom, Humanity claimed the 300 rebellious worlds it left behind. But light years away on the far side of a disputed region, a rival power has begun to move. They're stealing our planets, one at a time. Earth Command decides to invade the center of the frontier to set up an advanced base. The mission to DARK WORLD is highly classified and deadly. Legion Varus spearheads the effort, and James McGill journeys to the stars again. How many ships do they have? How advanced is their tech?

Thousands of years ago, Earth's terraforming program took to the stars. On the world they called Nod, scientists discovered alien life - but it was their mission to overwrite it with the memory of Earth. Then humanity's great empire fell, and the program's decisions were lost to time. Aeons later, humanity and its new spider allies detected fragmentary radio signals between the stars. They dispatched an exploration vessel, hoping to find cousins from old Earth. But those ancient terraformers woke something on Nod better left undisturbed. And it's been waiting for them.

The Darshik war machine is flagging, but the war is far from over. Even as an exhausted Federation military tenses up for a counterattack after repelling the last Darshik invasion, reports are coming in of a new, more powerful class of ship that's striking deep into Terran space. Captain Jackson Wolfe has been given the fleet's newest, most advanced destroyer and tasked with eliminating this new threat before it can claim any more human lives. What he finds, however, is immeasurably more dangerous than just some new class of starship....

Captain William Sparhawk flies Earth's single starship on a voyage of exploration. His crew of veteran spacers begins the mission with high hopes and the best of intentions, but the universe has other plans. Instead of space merchants and potential allies, they discover Earth's impending doom. Sparhawk must decide whether to hunt down enemy scouts to keep Earth's new starship a secret or to head home to warn Star Guard of the danger. Either way, he's ignited an interstellar war.

“There’s a lot of things they didn’t tell me when I signed on with this outfit.” At least that’s what Sam Washington discovered after he got hired as Spaceport Manager on Space Station Zion. For one thing, everyone hated his predecessor, so now they hate Sam. Still, once he took the job, Sam considered it his duty to get the place back in shape. But angry admirals and profit-crazed tycoons keep crawling into his job description. Too bad no one is on his side – even when the fate of the entire station is on the line! Can Sam fix this mess, or is it time to start updating his resume?

Fifty years after Steve Stuart and his friends captured an alien starship, the Solar Union is a thriving interstellar power while Earth is increasingly backward and falling into barbarism. For two youngsters from Earth, the Solar Union offers the only chance they will ever have to make something of their lives.

The day that changed Melody's life was like any other over the previous two years. She'd found she had a gift for writing, and her career as an author had almost healed the pain of losing her job. When the Secret Service rang her bell, everything changed. Something was nearing Saturn…and it was slowing down. Had she been right about the object?

1967: Ye Wenjie witnesses Red Guards beat her father to death during China's Cultural Revolution. This singular event will shape not only the rest of her life but also the future of mankind. Four decades later, Beijing police ask nanotech engineer Wang Miao to infiltrate a secretive cabal of scientists after a spate of inexplicable suicides. Wang's investigation will lead him to a mysterious online game and immerse him in a virtual world ruled by the intractable and unpredictable interaction of its three suns.

A revolution brewing for generations has begun in fire. It will end in blood. The Free Navy - a violent group of Belters in black-market military ships - has crippled the Earth and begun a campaign of piracy and violence among the outer planets. The colony ships heading for the 1,000 new worlds on the far side of the alien ring gates are easy prey, and no single navy remains strong enough to protect them. James Holden and his crew know the strengths and weaknesses of this new force better than anyone.

Two worlds preparing their defenses.... A ship struggling to get back in the fight.... An enemy continuing its relentless attack.... A former enemy that could hold the answer.... With the fate of billions in his hands, Captain Scott is offered a way to save them all and end the bloodshed, but if it backfires, he could lose everything. Sometimes, there is no good choice.