Brilliant government scientist Richard Seaton discovers a remarkable faster-than-light fuel that will power his interstellar spaceship, The Skylark. His ruthless rival, Marc DuQuesne, and the sinister World Steel Corporation will do anything to get their hands on the fuel. They kidnap Seaton's fiancée and friends, unleashing a furious pursuit and igniting a burning desire for revenge that will propel The Skylark across the galaxy and back.

Written in two parts, Triplanetary introduces the concept of two warring alien races: the Arisians and the Eddorians, whose battles on Earth are unknown to the human race, and in fact the humans are unaware that the Arisians have been secretly and selectively breeding the humans to use as weapons for these battles. From the time of Rome to World War II, the author takes the listener on a lightning-fast journey through Earth's history as the warzone for aliens.

The Inter-Planetary Corporation has sent the space ship Arcturus on a routine fact-finding mission, only to have it ambushed by a strange alien craft, leaving physicist Steve Stevens and Nadia Newton first stranded on Ganymede, and then caught up in the Vorkul-Hexan war. A space adventure of staggering proportions by science fiction master writer E. E. “Doc” Smith.

There he was in his sailboat in the middle of the Atlantic, all alone and loving it. Well, there was a US Navy carrier group on his southern horizon, but he was a Navy guy himself, so he didn't mind. Then came the UFOs, hurtling in from the Outer Black to overfly the carriers at Mach 17. Their impossible aerobatics were bad enough—but then they started shooting at each other, and at the Navy, with nukes. Little ones at first, but winding up with a 500 megatonner at 90 miles that fried every piece of electronics within line-of-sight.

They were four of the greatest minds in the Universe: Two men and two women, all Psionic Primes, lost in an experimental spaceship billions of parsecs from home. And as they mentally charted the cosmos to find their way back to Earth, their own loves and hates were as startling as the worlds they encountered. Here is E. E. Smith's classic science fiction novel - one of the greatest space operas of all time!

In the 20th century Earth sent probes, transmissions, and welcoming messages to the stars. Unfortunately, someone noticed. The Galactics arrived with their battle fleet in 2052. Rather than being exterminated under a barrage of hell-burners, Earth joined their vast Empire. Swearing allegiance to our distant alien overlords wasn't the only requirement for survival. We also had to have something of value to trade, something that neighboring planets would pay their hard-earned credits to buy. As most of the local worlds were too civilized to have a proper army, the only valuable service Earth could provide came in the form of soldiers....

Jonathan Hoag has a curious problem. Every evening, he finds a mysterious reddish substance under his fingernails, with no memory what he was doing during the day to get it there. Jonathan hires the husband and wife detective team of Ted and Cynthia Randall to follow him during the day and find out. But Ted and Cynthia find themselves instantly out of their depth. Jonathan leaves no fingerprints. His few memories about his profession turn out to be false.

In a world full of super powers, Felix has a pretty crappy one. He has the ability to modify any item he owns. To upgrade anything. Sounds great on paper. Almost like a video game. Except that the amount of power it takes to actually change, modify, or upgrade anything worthwhile is beyond his abilities. With that in mind, Felix settled into a normal life. A normal job. His entire world changes when the city he lives in is taken over by a super villain. Becoming a country of one city. A city state.

Jim Marlowe and his strange-looking Martian friend, Willis, are allowed to travel only so far. But one day Willis unwittingly tunes in to a treacherous plot that threatens all the colonists on Mars, and it sets Jim off on a terrifying adventure that could save - or destroy - them all.

Travel to other planets is now a reality, and with overpopulation stretching the resources of Earth, the necessity of finding habitable worlds is growing ever more urgent. There’s a problem though—because the spaceships are slower than light, any communication between the exploring ships and Earth would take years.

Tom and Pat are identical twin teenagers. As twins they’ve always been close, so close that it seemed like they could read each other’s minds.

Nine hundred thousand years ago, something annihilated the Amarantin civilization just as it was on the verge of discovering space flight. Now one scientist, Dan Sylveste, will stop at nothing to solve the Amarantin riddle before ancient history repeats itself. With no other resources at his disposal, Sylveste forges a dangerous alliance with the cyborg crew of the starship Nostalgia for Infinity. But as he closes in on the secret, a killer closes in on him because the Amarantin were destroyed for a reason.

Get ready to experience two more origin stories in the Backyard Starship universe.

The totalitarian East has triumphed in a massive invasion, and the United States has fallen to a dictatorial superpower bent on total domination. That power is consolidating its grip through concentration camps, police state tactics, and a total monopoly upon the very thoughts of the conquered populace. A tiny enclave of scientists and soldiers survives, unbeknownst to America’s new rulers. It’s six against six million - but those six happen to include a scientific genius, a master of subterfuge and disguise who learned his trade as a lawyer-turned-hobo, and a tough-minded commander....

. C. “Scar” Gordon was on the French Riviera recovering from a tour of combat in Southeast Asia, but he hadn’t given up his habit of scanning the personals in the newspaper. One ad in particular leapt out at him: "Are you a coward? This is not for you. We badly need a brave man. He must be 23 to 25 years old, in perfect health, at least six feet tall, weigh about 190 pounds, fluent English with some French, proficient with all weapons, some knowledge of engineering and mathematics essential...."

Loyally accompanying a mysterious knife-wielding gentleman named Jack on his midnight rounds through the murky streets of London, good dog Snuff is busy helping his master collect the grisly ingredients needed for an unearthly rite that will take place not long after the death of the moon. But Snuff and his master are not alone. All manner of participants, both human and not, are gathering with their ancient tools and their animal familiars in preparation for the dread night.

Brilliant government scientist Richard Seaton discovers a remarkable faster-than-light fuel that will power his interstellar spaceship, The Skylark. His ruthless rival, Marc DuQuesne, and the sinister World Steel Corporation will do anything to get their hands on the fuel. They kidnap Seaton's fiancée and friends, unleashing a furious pursuit and igniting a burning desire for revenge that will propel The Skylark across the galaxy and back.

They are the Voltarians of Voltar - an empire 110 planets strong. They are already among us. And the invasion is about to begin...in a hundred years or so. Or is it? The truth is far more sinister. Undercover, underground, and out of sight, the invaders plan what may in fact be a massive diversion. In the darkest recesses of Voltar’s Coordinated Information Apparatus (otherwise known as the CIA), a tyrant of terror sets out to exploit the invasion in order to seize power. All that stands in his way is a planet that doesn’t exist.

Robert A. Heinlein has been hailed as one of the most forward-thinking science fiction writers of all time, and Expanded Universe (presented in two volumes) offers the perfect collection of his works to provide listeners with true insights into his uniquely creative mind.

Ijon Tichy, Lem's Candide of the Cosmos, encounters bizarre civilizations and creatures in space that serve to satirize science, the rational mind, theology, and other icons of human pride.

How far is too far? Alan Corday is about to find out. Corday is shanghaied aboard a craft bound for the stars...on a journey at the speed of light, the world he leaves behind fast vanishing into the past. And nothing in the dark, forbidding reaches of space can prepare him for the astounding discovery he will make upon his return from the stars.

Moth was a beautiful planet, the only one with wings - two great golden clouds suspended in space around it. Here was a wide-open world for any venture a man might scheme. The planet attracted unwary travelers, hardened space-sailors, and merchant buccaneers - a teeming, constantly shifting horde that provided a comfortable income for certain quick-witted fellows like Flinx and his pet flying snake Pip.

North Power Air is in trouble. Their aircraft are crashing at an alarming rate and no one can figure out the cause. Desperate for an answer, they turn to Waldo, a crippled misanthropic genius who lives in a home in orbit around Earth, where the absence of gravity means that his feeble muscle strength does not confine him helplessly in a wheelchair. But Waldo has little reason to want to help the rest of humanity - until he learns that the solution to Earth’s problems also holds the key to his own.

They said his uncle Ian died in a car accident. Alex Rider knows that's a lie, and the bullet holes in his uncle's car confirm the truth. But nothing can prepare him for the news that the uncle he always thought he knew was really a spy for Britain's top-secret intelligence agency. Enlisted to find his uncle's killers and complete Ian's final mission, Alex suddenly finds himself caught in a deadly game of cat and mouse, with no way out.

Five months after the horrific accident that left him near death and worried that he'd never fly again, master-pilot Alex Romanov lands a new job: captaining the sleek passenger vessel Mirror. Alex is a spesh - a human who has been genetically modified to perform particular tasks. As a captain and pilot, Alex has a genetic imperative to care for passengers and crew - no matter what the cost.

A spy is dead. A legend is born. This is how it all began. The explosive prequel to Casino Royale, from best-selling author Anthony Horowitz. Forever and a Day is the story of the birth of a legend, in the brutal underworld of the French Riviera, taking listeners into the very beginning of James Bond’s illustrious career and the formation of his identity.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

This fictionalized story of the true-life genius Nikola Tesla - arguably the most influential inventor in history - offers a "young-to-old" portrayal in the form of "A Romance of the Mind". It reveals his impassioned inner life and his secret love for Karina, the muse no one else can see who brings him life-altering inspirations.

Mankind was beginning its third leap into the Galaxy, but Old Earth had so long kept to herself that her people were unable to travel safely among the rough-and-tumble cultures that had evolved on distant worlds. That annoyed Earth's rulers, for Hobart Floyt--a minor Terran bureaucrat-- had been left a mysterious inheritance by the deceased ruler of a small but wealthy interstellar empire.

It isn’t easy to get a group of bestselling SF authors to write new stories for an anthology, but that’s what Elizabeth Anne Hull has done in this powerhouse book. With original, captivating tales by Greg Bear, Gregory Benford, Ben Bova, David Brin, Cory Doctorow, Neil Gaiman, Joe Haldeman, Harry Harrison, Larry Niven, Vernor Vinge, Gene Wolfe, and others, Gateways is a SF event that will be a must-buy for SF readers of all tastes, from the traditional to the cutting edge; from the darkly serious to the laugh-out-loud funny.

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.