Showing titles in Hard Science Fiction

And so continues the saga of the Clan invasion and the explosive struggle within the Inner Sphere. With secret aid from ComStar, the Terran-based sect that serves as the keeper of the Inner Sphere's technological secrets, the Clans' BattleMech warriors have been incredibly successful in their campaign of invasion. But ComStar has its own reasons for giving aid to the enemy, and if its strategy proves successful, the Inner Sphere worlds will finally be reunited under ComStar's rule.

The aliens are here. And they want to help. The extraordinary new project from one of the country's most acclaimed and consistently brilliant SF novelists of the last 30 years. The Jackaroo have given humanity 15 worlds and the means to reach them. They're a chance to start over, but they're also littered with ruins and artifacts left by the Jackaroos' previous clients.

An alien message is now humanity’s only hope. Decoding the signal has given us one chance to stop the Anomaly, an ever-tightening cosmic noose, before it squeezes the life out of Earth. The only problem is, the aliens’ single instruction sounds like a bona fide death wish. They want me to step through their incredible quantum gateway, an enigma wrapped in starlight. Believe me: if I had any other option, I’d be taking it. But with the best data giving Earth a few days before the Anomaly consumes us, options are in short supply. Suicide or salvation? I’m about to find out.

For 16-year-old Jane, life is a mystery she despairs of ever mastering. She and her friends are the idle, pampered children of the privileged class, living in luxury on an Earth remade by natural disaster. Until Jane's life is changed forever by a chance encounter with a robot minstrel with auburn hair and silver skin, whose songs ignite in her a desperate and inexplicable passion. Jane is certain that Silver is more than just a machine built to please. And she will give up everything to prove it.

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.

Professor James Lowry didn’t believe in spirits, or witches, or demons. Not until a gentle spring evening when his hat disappeared, and suddenly he couldn’t remember the last four hours of his life. Now, the quiet university town of Atworthy is changing - slightly at first, then faster and more frighteningly each time he tries to remember.

Nothing brings change like war. A surge of new tech. New weapons. New tactics. To lead a crew to victory, a captain must understand change. He must understand command and that it is a test. A test most men fail. He must be brilliant. Resourceful. Every second. Of every day. And at night during scarce moments of rest, he must sleep the sleep of the righteous. The time has come for Commander Tad Thatcher to look in the mirror. The time has come to ask himself...am I that kind of man?

What if you found a way to send something back in time? But not weeks, days, or even minutes back. What if you could only send something back a fraction of a second? Would this be of any use? You wouldn't have nearly enough time to right a wrong, change an event, or win a lottery. Nathan Wexler is a brilliant physicist who thinks he's found a way to send matter a split second back into the past. But before he can even confirm his findings, he and his wife-to-be, Jenna Morrison, find themselves in a battle for their very lives.

Humanity has taken to the stars, using faster-than-light travel to reach distant planets and new worlds. But in the far reaches of the galaxy, John Grant will discover a planet of humans who believe he has travelled not only through space to find them, but time. On Apis, the mysterious Fermi appear to have vanished, taking with them knowledge of the universe that humanity desires. But Marcus Owen, the robot AI now plagued with sentience, knows that the Fermi would not easily abandon the native life of Apis.

In the mid-23rd century, Darwin, Australia, stands as the last human city on Earth. The world has succumbed to an alien plague, with most of the population transformed into mindless, savage creatures. The planet’s refugees flock to Darwin, where a space elevator—created by the architects of this apocalypse, the Builders—emits a plague-suppressing aura.

This is how the world ends. Not with a bang, but with many nuclear bombs detonated around the planet. It was no longer a topic of conversation around the dinner table as in years past. Nobody was prepared, including the world's governments. Yet the threat was always real, and the devastation was predictable. The damage was incalculable. Millions died at the points of impact. Nuclear winter spread across the globe. A rapidly cooling climate shocked humanity and all living things...to their death.

Between 2017 and 2021, the US military admitted to having undeniable evidence that UFOs (now UAVs or UAPs) are here and defy the laws of physics. When Jason Ramsey, a popular science-fiction writer, becomes obsessed with the subject, he undertakes a relentless quest to uncover what is really going on. After recruiting Tessa Barrett, an extraordinarily talented mercenary, Jason devises a risky, desperate plan to get to the bottom of it all. But the truth is far more shocking, convoluted, and dangerous than anyone could have guessed, and he has no idea who he can trust.

Here are tales of star-faring adventure, peril, and drama. Here are journeys into the mind-bending landscapes of virtual worlds and alternate realities. Here you'll also find stories of humanity's astounding future on Earth, on Mars, and in the solar system beyond - stories that always get the science right. And Bova's gathering of deeply realized, totally human characters are the heroic, brave, tricky, sometimes dastardly engineers, astronauts, corporate magnates, politicians, and scientists who will make these futures possible.

Three against the stars! A sky pirate armed with superior weapons of his own invention.... First contact with an alien race dangerous enough to threaten the safety of two planets.... The arrival of an unseen dark sun whose attendant marauders aimed at the very end of civilization in this Solar System.... These were the three challenges that tested the skill and minds of the brilliant team of scientist-astronauts Arcot, Wade, and Morey.

With The Best Science Fiction of the Year: Volume Six, award-winning editor Neil Clarke provides a year-in-review and 33 of the best stories published by both new and established authors in 2020.

Alan Green, space-wrecked on a populated but backward planet, has survived for two years as a slave with no hope of rescue. Then, one day, news of spacemen landing in a remote city gives him his only chance of ever returning home. All he has to do is escape slavery, travel thousands of miles, free the spacers from prison before they are executed, and get aboard their spaceship.

Upon the ancient drysine moon/city of Defiance, the UFS Phoenix is being rebuilt, but her crew cannot do so in peace. Parren factions jostle for control of not only Defiance, but of the drysine data-core that Phoenix won at such an awful price. But the parren do not lay sole claim to that ancient knowledge, and within the bowels of the machine-city, something long-dead is awakening. While aliens battle, Captain Debogande struggles to decide his next step. Human emissaries beckon him home, while a terrible new threat drives him toward the far edge of Spiral space.

Yefremov is frequently ridiculed for his enthusiasm and faith in the viability of a communist society, as described in his best known science-fiction novel Andromeda Nebula. What is frequently overlooked is Yefremov's tremendous knowledge of history and profound understanding of psychology. His future society, while highly evolved, is not impervious to mistakes. His future humanity, having learned and discovered much, is not pausing to rest on its laurels - it continues to learn and explore.

In the guise of political revolutionary Thomas Paine, bioengineer Peter Bernhardt brought down the corrupt and powerful Phoenix Club - and then turned revolution into evolution by becoming the first artificial human intelligence: Major Tom. In the two years since Major Tom revealed his digital existence and spread his freedom manifesto, he has been revered as a god and vilified as a demon. The United States and Europe have splintered into ideologically independent regions. Russia and China prepare to expand their empires.

In this Hugo-nominated novel, Neanderthal physicist Ponder Boddit brings Canadian geneticist Mary Vaughan back to his world to explore the near-utopian civilization of the Neanderthals. Boddit serves as a Candide figure, the naive visitor whose ignorance about our society makes him a perfect tool to analyze human tendencies toward violence, over-population, and environmental degradation.