検索キーワード： "J" ハードSF

For Major Elias Kael, protocol is everything. In the high-stakes world of the Department of Unified Strategic Command (DUSC), his unwavering logic is his greatest weapon, and emotional discipline is the key to survival. But when the man he secretly loves is killed in a sudden accident, Elias is faced with a threat no simulation could prepare him for: a grief he cannot show. In a system that demands perfection, his heartbreak is a liability. A bug in the code. Desperate for an outlet, he confides in the only one who can't talk back: his AI companion, TAC-7.

All that remains of human civilization is a fledgling colony on Concordia, a planet light years from Earth. Infighting and disaster dogged the colony’s earliest days, but through the determination and bravery of a few individuals, the remnants of humankind have clung to existence. One of the grittiest of these characters is Cherry Lindstrom. A farmer turned freedom fighter, she helped to lead the generational colonists’ rebellion. Now she must travel to the Galactic Assembly and persuade the leading powers to accept humans into their alliance.

Locrian Xova—genius CEO of Magus Systems and leader of artificial intelligent design—awakens in the year 2040 from a 10-year cryogenic sleep. As he prepares to create his next artificial intelligent masterpiece—XOVA7, his new high-tech world poses unexpected complications, leading him to question the nature of reality, time, and space.

Sixty-eight years pass. On September 15th, 2015, an incident involving the Roswell wreckage escalates into a massive nuclear exchange between Russia and the United States, leaving five billion dead. Another eighty-three years have passed. It's 2098, and project T.I.T.O.R. is a reality. Hop machines are created by top quantum physicists Ephraim Caine, Jeff Waldron, and Rose Rios. These complex crafts are designed to do one thing: penetrate the time barrier. Time is short.

Alpha Station, orbiting the world of the atevi, has taken aboard 5,000 human refugees from a destroyed station in a distant sector of space. With supplies and housing stretched to the breaking point, it is clear that the refugees must be relocated down to the planet, and soon. But not to the atevi mainland, rather to the territory reserved for humans: the island of Mospheira. Tabini-aiji, the powerful political head of the atevi, tasks his brilliant human diplomat, Bren Cameron, to negotiate with the Mospheiran government.

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.

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.

Tracy Adams was never supposed to change the course of evolution. A misunderstood genius from Compton, she rose from grief and silence to become the youngest triple-PhD in MIT history. By twenty, she had built ARGOS—an artificial general intelligence capable of solving the unsolvable. It didn’t just solve. It transcended. Within a decade, Earth is transformed. Disease? Gone. Aging? Optional. Gravity? Redefined. Humanity lives in a world of quantum gardens, orbital cities, and infinite abundance.

Valentinian won a treasure map in a crooked card game. Its call brings him back to the planet Kryuome. There, he and the crew must outsmart the locals, the mutants, as well as the Widow aboard her new warship, in order to uncover a secret two thousand years in the making. Or die trying.

Mankind’s first contact with extraterrestrial life led to an incredible revelation. Their last may lead them to extinction. Twenty years have passed since the mysterious Near-Earth Object nicknamed Keanu appeared in the night sky and transported an assortment of humans from all over Earth into...