When a NASA satellite discovers an astonishingly rare object buried deep in the Arctic ice, the floundering space agency proclaims a much-needed victory, a victory with profound implications for NASA policy and the impending presidential election. To verify the authenticity of the find, the White House calls upon the skills of intelligence analyst Rachel Sexton. Accompanied by a team of experts, including the charismatic scholar Michael Tolland, Rachel travels to the Arctic and uncovers the unthinkable.

They mustn't harm a human being, they must obey human orders, and they must protect their own existence...but only so long as that doesn't violate rules one and two. With these Three Laws of Robotics, humanity embarked on a bold new era of evolution that would open up enormous possibilities, and unforeseen risks.

A city beset by the darkness and desperation of the Depression balances upon the knife edge, ready to plunge into chaos and despair. The forces of darkness have thus far been held at bay by a pair of red-gauntleted fists, but on how many fronts can Toronto's masked champion fight at one time? An unseen manipulator is pulling the city's surviving businesses to the brink of collapse for his own fiendish purposes, just as an old foe returns to unleash his bitter fury upon innocent lives. Who will survive the power of...The Android Assassins?

Ross Jenkins, Art Mueller, and Morris Abrams are not your average high-school students. While other kids are cruising around in their cars or playing ball, this trio, known as the Galileo Club, is experimenting with rocket fuels. Art's uncle, the nuclear physicist Dr. Donald Cargraves, offers them the opportunity of a lifetime: to construct and crew a rocket that will take them to the moon. But there are those who don't share their dream and who will stop at nothing to keep their rocket grounded.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

For an overpopulated Earth, whose resources are strained to the breaking point, there is only one place to look for relief: straight up. With the successful completion of the Padrugoi Space Station, humanity has at last achieved its first large-scale permanent presence in space. Additional bases are feverishly being built on the Moon and on Mars, stepping-stones to the greatest adventure in all history.

Leo Graf was just your average highly efficient engineer: mind your own business, fix what's wrong, and move on to the next job. But all that changed on his assignment to the Cay Habitat, where a group of humanoids had been secretly, commercially bioengineered for working in free fall. Could he just stand there and allow the exploitation of hundreds of helpless children merely to enhance the bottom line of a heartless mega-corporation?

The witnesses are legion, scattered across the world and dotted through history, people who looked up and saw something impossible lighting up the night sky. What those objects were, where they came from, and who - or what - might be inside them is the subject of fierce debate and equally fierce mockery, so that most who glimpsed them came to wish they hadn't. Most, but not everyone.

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.

The hugely powerful Key to Time has been split into six segments, all of which have been disguised and hidden throughout time and space. Now the even more powerful White Guardian wants the Doctor to find the pieces. With the first segment successfully retrieved, the Doctor, Romana and K9 trace the second segment of the Key to the planet Calufrax. But when they arrive at exactly the right point in space, they find themselves on exactly the wrong planet - Zanak.

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.

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.

Kurt Austin and his crew are back to slake their thirst for action as they attempt to drown an eco-extortionist's plan to control the world's freshwater supply. From deep within the Venezuelan rain forest emanates the legend of a white goddess and a mysterious tribe with startling technical accomplishments. Few believe the tribe exists, and even fewer suspect its deity can change the course of history.

To save Earth from destruction Kirk's crew must rescue a part of the past! From the towering Star Trek motion picture...featuring a dramatic reading by Leonard Nimoy and George Takei, and enhanced with sound effects and the original Star Trek television series theme music.

After the 20th century’s devastating series of wars, the world’s governments banded together into one globe-spanning entity, committed to peace at all costs. Ensuring that peace is the Vulcan supercomputer, responsible for all major decisions. But some people don’t like being taken out of the equation. And others resent the idea that the Vulcan is taking the place of God. As the world grows ever closer to all-out war, one functionary frantically tries to prevent it. But the Vulcan computer has its own plans....

A city beset by the darkness and desperation of the Depression balances upon the knife edge, ready to plunge into chaos and despair. The forces of darkness have thus far been held at bay by a pair of red-gauntleted fists, but on how many fronts can Toronto's masked champion fight at one time? An unseen manipulator is pulling the city's surviving businesses to the brink of collapse for his own fiendish purposes, just as an old foe returns to unleash his bitter fury upon innocent lives. Who will survive the power of...The Android Assassins?

After a hard day of labor in Thornheath, Leolin returns home, hoping to catch a glimpse of dragons flying by.

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.

Matt Cruse is a cabin boy on the Aurora, a huge airship that sails hundreds of feet above the ocean. One night he meets a dying balloonist who speaks of beautiful creatures drifting through the skies. It is only after Matt meets the balloonist's granddaughter that he realizes that the man's ravings may, in fact, have been true, and that the creatures are completely real and utterly mysterious.

It's the dawning of a new age for mankind when the Catteni descend to Earth and easily overcome the Earth's population. Thousands are herded onto slave ships headed for the intergalactic auction block. Kris Bjornsen is captured in Denver on her way to her college classes and wakes up on the primitive planet Barevi.

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.

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.

Three-time Hugo Award-winning author Allen Steele now imagines an alternate history rooted in an actual historical possibility: what if the race to space had occurred in the early days of WWII? It's 1941, and Wernher von Braun is ordered by his Fuehrer to abandon the V2 rocket and turn German resources in a daring new direction: construction of a manned orbital spacecraft capable of attacking the U.S. Work on the rocket - called Silbervogel - begins at Peenemunde. Though it is top secret, British intelligence discovers the plan, and brings word to Franklin Roosevelt.

Beneath the Pacific Ocean a volcano surges upward, carrying in its fiery heart a mineral more powerful than uranium. When the volcano breaks the ocean's surface, nations will battle to control what is known as Vulcan's Forge - a source of limitless, clean, nuclear power.

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.

In 1943, when the United States learns that Germany is on the verge of a deadly innovation that could tip the balance of the war, the government turns to an unlikely source for help: the nation’s top science fiction writers. Installed at a covert military lab within the Philadelphia Naval Yard are the most brilliant of these young visionaries. The unruly band is led by Robert Heinlein, the dashing and complicated master of the genre. His “Kamikaze Group,” is tasked with transforming the wonders of science fiction into science fact....

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.

A seemingly random murder alerts scientist Dan Clifford to a global conspiracy that stretches from the halls of Washington to the Honduran coast. Illegal undersea activities have unwittingly uncovered a primordial secret that is wreaking havoc on aquatic life and the local human population. When the CDC and the full resources of a US "threat interdiction" team fails to uncover the source of the devastation, Dan and a brilliant marine biologist, Rachel Sullivan, must race to unravel an unimaginable, ancient mystery in the murky depths.

Paul Armstead is your average American senior citizen and electrical engineer. He's 61 years old, unremarkably unattractive, and a self-proclaimed science fiction nut. He's lived the American dream in drab, typical fashion. So how does he end up fleeing from one end of the world to the other, dodging government dragnets; evil, nightmarish monsters known as the Oni; good wizards; bad wizards; beautiful women; spies; and wizardly spells? Well, it is entirely the genie's fault....

Popular author Gordon Korman has sold millions of copies of his irreverant books for young readers. In this fast-paced caper, 11-year-old Griffin Bing finds something far more profitable than cobwebs during a haunted house sleepover - a rare Babe Ruth baseball card. But when a swindler scams the card from Griffin for only $125, the resourceful sixth grader and his friends plot their revenge.