A hero without peer or scruples, Sam Gunn has a nose for trouble, money, and women, though not necessarily in that order. A man with the ego (and stature) of a Napoleon, the business acumen of a P. T. Barnum, and the raging hormones of a teenage boy, Sam is the finest astronaut NASA ever trained and dumped. But more than money, more than women, Sam Gunn loves justice—and he really does love money and women.

Stoner knew. The fiery object hurtling toward the Earth was an alien spacecraft. But the world might never know. He was trapped in an iron cordon of secrecy, for the discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged from the sacred halls of the Vatican to the corridors of the Kremlin and the Pentagon. The forces of fear and treachery would use any weapon at their command, from mind war to sabotage, to keep the world in darkness.

In a startling future that's coming closer every year, Chet Kinsman is an astronaut ace who has done everything one can in space - including commit the first murder. It's a secret he can never escape, not even on the moon, where he's head of the first U.S. lunar colony. A series of shocking yet strangely inevitable circumstances will force Kinsman to confront his hidden past and decide Earth's destiny. In a desperate countdown to nuclear annihilation, Kinsman will struggle against a deadly dilemma: if he rescues the world, he risks destroying himself.

When Kell and his team return to Earth many years after their departure, they find that their world has changed almost beyond recognition. Not only has a second wave of greenhouse flooding caused sea levels to rise, but society has been changed by the consequences of the climate shift. Few people want to face Jordan Kell's news. He must convince Earth's new rulers that the human race is in danger of extinction unless it acts to forestall the death wave coming from the galaxy's heart.

A powerful world government has scientists transported from an overpopulated earth to a satellite on the eve of their discovery of a method to modify the human embryo.

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.

Jon Ryan is irreverent, cocky, funny, and walks with a swagger. The cocky fighter pilot turned astronaut is also Earth's only chance for survival. The planet Jupiter, thrown off orbit, will destroy Earth in less than a century. Jon volunteers for the most ambitious, desperate mission ever conceived: His consciousness must be transferred into an experimental android host, where he'll live an immortal - and lonely - life. Jon's only companion on his 50-year voyage is his ship's irritable AI.

When a nuclear missile launched by a rogue North Korean faction explodes in space, the resulting shock wave destroys most of the world’s satellites, throwing global communication into chaos. U.S. military satellites, designed to withstand such an assault, show that two more missiles are sitting on launch pads in North Korea, ready to be deployed. Faced with the threat of a thermonuclear attack, the United States has only one possible defense: Able One.

In the 25th century, humans have conquered space. The advent of faster-than-light travel has opened up hundreds of habitable planets for colonization, and humans have exploited the virtually limitless space and resources for hundreds of years with impunity. So complacent have they become with the overabundance that armed conflict is a thing of the past, and their machines of war are obsolete and decrepit. What would happen if they were suddenly threatened by a terrifying new enemy?

What lies on the dark side of the moon could change the course of humanity forever. When a Chinese rover discovers an alien technology on the dark side of the moon, it is up to Richard "Rock" Crandon and his NASA team of scientists and engineers to devise a way to return before the Chinese and Russians. Forced to deal with bureaucratic oversight and a complex team of personalities, Rock Crandon pushes his team to their limits.

High above the planet Harmony, the Oversoul watches. Its task, programmed so many millennia ago, is to guard the human settlement on this planet, to protect this fragile remnant of Earth from all threats...to protect them, most of all, from themselves.

Out of the blue, a young Space Fleet officer's dream becomes reality: He's made captain of a starship. Just in time for the return of humanity's most terrible enemy, after 50 years of peace. To survive against this enemy, Captain Tad Thatcher will have to do more than learn how to become an effective commander, or how to wrangle his wayward crew. He will need to reinvent space combat. From scratch.

NASA finally made it. The very first human has just set foot on the surface of our neighbor planet. This is the start of a long research expedition that sent four scientists into space. But the four astronauts of the NASA crew are not the only ones with this destination. The privately financed "Mars for Everyone" initiative has also targeted the Red Planet. Twenty men and women have been selected to live there and establish the first extraterrestrial settlement.

In the final days of the empire, Cyborg Corps Colonel Leonidas Adler plans to die in a manner befitting of an imperial officer. He will fight until his last breath, giving his life to defend Emperor Markus, as it was meant to be. But when the emperor himself summons him for a final special mission, how can he refuse?

The Phage War had been a devastating conflict for the Terran Confederacy. Even with the destruction of their terrifying, implacable foe, humanity is still reeling. Political alliances are crumbling, and their mighty fleet is in tatters. There is nothing to celebrate, even after such a complete victory. They soon learn that there are other stellar neighbors - and they've been watching the conflict with great interest. One species comes with an offer of friendship and alliance, but humanity is weary and distrustful.

The award-winning, bestselling author's first novel. The beamjacks work in zero-gravity constructing satellites in the vacuum of deepest space. And they're not going to let the military control them anymore.

Geoff and his friends live in Phocaea, a distant asteroid colony on the Solar System's frontier. They're your basic high-spirited young adults, enjoying such pastimes as hacking matter compilers to produce dancing skeletons that prance through the low-gee communal areas, using their rocket-bikes to salvage methane ice shrapnel that flies away when the colony brings in a big (and vital) rock of the stuff, and figuring out how to avoid the ubiquitous surveillance motes.

In the 21st century, the perfection of faster-than-light travel and the rise of a prodigious artificial intelligence known as the Eschaton altered the course of humankind. New civilizations were founded across the vastness of space. Now, the technology-eschewing world known as the New Republic is besieged by an alien information plague. Earth quickly sends a battle fleet - but is it coming to the rescue, or is a sinister plot in motion?

On June 30, 1908, an object fell from the sky, releasing more energy than a thousand Hiroshima bombs. A Siberian forest was flattened, but the strike left no significant crater. The anomaly came to be known as the Tunguska Event, and scientists have never agreed whether it was the largest meteor strike in recorded history - or something else. Alien artifacts have been uncovered since the 1908 event, and a new star drive is discovered.

They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star. The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods.

Roger Torraway watched in horror as the monster lurched, toppled over and died. Project Man Plus had gone suddenly and drastically wrong. The race to colonize Mars was too important, too costly, and America was already too committed, for plans to be scrapped. They would have to make a new Martian. And Roger Torraway was it, candidate for the endless surgery, operation after painful operation, that would enable him to survive on that faraway planet.

When humanity reaches for the stars, our probes are destroyed. They crash into an incredibly advanced piece of technology: a massive force-field. Unknown beings have placed a barrier around our star and planets, enclosing us within. We’re locked inside a Great Sphere. Was this invisible obstacle built to imprison us - or to protect us? No one knows the truth, but it soon becomes clear the barrier has leaks. Aliens infiltrate and try to sabotage our efforts to escape our cage.

Emanuel Goldsmith, a famous poet, murdered eight people, then disappeared. Three people want to find him: an aspiring writer, an embittered scientist who wants to use him, and a policewoman who needs to put him in custody before the Selectors, a vigilante organization, get to him first.

The first book in an action–packed new SF adventure series. Vulcan is a factory planet, centuries old, Company run, ugly as sin, and unfeeling as death. Vulcan breeds just two types of native: complacent or tough. Sten is tough. When his family is killed in a mysterious accident, Sten rebels, harassing the Company from the metal world’s endless maze-like warrens. He could end up just another burnt–out Delinquent. But people like Sten never give up.

Carson Mach, a former war hero turned freelancer, seeks the biggest payday of his life when he's tasked to hunt down a ghost ship that has echoed through the centuries. The legendary Atlantis ship has become a reality, appearing at the Commonwealth frontier and obliterating an orbital station.

When Rip Cantrell, a seismic survey worker in the Sahara, spots a glint of reflected light in the distance - he investigates and finds a piece of metal apparently entombed in the sandstone. Before long, Rip and his colleagues uncover a flying saucer that has been resting there for 140,000 years.

On September 28th, a geologist working in Death Valley finds a mysterious new cinder cone in very well-mapped area. On October 1, the government of Australia announces the discovery of an enormous granite mountain. Like the cinder cone, it wasn't there six months ago.

Something is happening to planet Earth, and the truth is too terrifying to contemplate

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.

Short novels are movie-length narratives that may well be the perfect length for science fiction stories. This audio collection presents the best-of-the-best short science fiction novels published in 2014 by current and emerging masters of this vibrant form of storytelling.

Humans call them Monument-Makers. An unknown race, they left stunning alien statues scattered on distant planets throughout the galaxy, encoded with strange inscriptions that defy translation. Searching for clues about the Monument-Makers, teams of 23rd century linguists, historians, engineers and archaeologists have been excavating the enigmatic alien ruins on a number of planets, uncovering strange, massive false cities made of solid rock. But their time is running out.

Two hundred thousand feet up, things go horribly wrong. An experimental low-orbit spaceplane breaks up on reentry, falling to earth over a trail hundreds of miles long. And in its wake is the beginning of the most important mission in the history of spaceflight.

John O'Ryan is not a god...not exactly. He is an eternal warrior destined to combat the Dark Lord through all time for dominion of the Earth. Follow him, servant of a great race, as he battles his enemy down the halls of time, from the caves of our ancestors to the final confrontation under the hammer of nuclear annihilation.

Six-time Hugo Award winner Bova likes to tell big stories in a small way. This approach both helps and hurts in this collection of stories, excerpts and outtakes from his "Grand Tour" novels (Saturn, etc.), which explore the colonization of the solar system. Despite his vast subject, Bova focuses tightly on the heroes and villains whose striving makes up his future history. While some characters are standards of the SF genre (megalomaniac capitalist, lone-wolf entrepreneur, love object caught between them), Bova imbues each with Homeric virtues and flaws.

A hero without peer or scruples, Sam Gunn has a nose for trouble, money, and women, though not necessarily in that order. A man with the ego (and stature) of a Napoleon, the business acumen of a P. T. Barnum, and the raging hormones of a teenage boy, Sam is the finest astronaut NASA ever trained and dumped. But more than money, more than women, Sam Gunn loves justice—and he really does love money and women.

Stoner knew. The fiery object hurtling toward the Earth was an alien spacecraft. But the world might never know. He was trapped in an iron cordon of secrecy, for the discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged from the sacred halls of the Vatican to the corridors of the Kremlin and the Pentagon. The forces of fear and treachery would use any weapon at their command, from mind war to sabotage, to keep the world in darkness.

How do you get to the Red Planet? Not via a benightedgovernment program trapped in red tape and bound by budget constrictions,that's for sure. No, what it will take is a helping of adventure, science,corporate power plays, a generous dollop of seduction - both in and out of theboardroom - and money, money, money!

When Kell and his team return to Earth many years after their departure, they find that their world has changed almost beyond recognition. Not only has a second wave of greenhouse flooding caused sea levels to rise, but society has been changed by the consequences of the climate shift. Few people want to face Jordan Kell's news. He must convince Earth's new rulers that the human race is in danger of extinction unless it acts to forestall the death wave coming from the galaxy's heart.

Island One is a celestial utopia, and David Adams is its most perfect creation - a man with a brain as advanced as any computer and a body free of human frailties. But David is a prisoner - a captive of the colony that created him - destined to spend the days of his life in an island-sized cylinder that circles a doomed and desperate home planet. Thousands of miles below him, a world trembles; its people cringe in terror and despair in anticipation of an impending apocalypse. And fate has cast one extraordinary human in the role of savior.

A powerful world government has scientists transported from an overpopulated earth to a satellite on the eve of their discovery of a method to modify the human embryo.

In a startling future that's coming closer every year, Chet Kinsman is an astronaut ace who has done everything one can in space - including commit the first murder. It's a secret he can never escape, not even on the moon, where he's head of the first U.S. lunar colony. A series of shocking yet strangely inevitable circumstances will force Kinsman to confront his hidden past and decide Earth's destiny. In a desperate countdown to nuclear annihilation, Kinsman will struggle against a deadly dilemma: if he rescues the world, he risks destroying himself.