Space Science

On the planet of Per Ardua, alien artifacts were discovered - hatches that allowed humans to step across light-years of space as if they were stepping into another room. But this newfound freedom has consequences. As humanity discovers the real nature of the universe, a terrifying truth comes to light: We all have countless pasts converging in this present - and our future is terrifyingly finite. There are minds in the universe that are billions of years old, and now we are vulnerable to their plans for us.

Merritt Alder is done with Earth. The planet is polluted and overpopulated, and its people are hungry. Earth's first colony, Galena, is a pioneer world 10,000 light years away. It has clean air, unpolluted water, and continents of arable land. Anyone can start a new life…if they can get there. For Merritt, the journey is only the beginning. Obstacles arise every step of the way, forcing compromise and sacrifice. And not everyone on his ship is pure of heart. The bonds he forges on the journey will be the key to surviving on another world—a world anyone has yet to fully explore.

Born on an abandoned colony barely held together by sealant tape and hope, Aurora Sato is at the very bottom of the social pecking order. Hard work and brains got her into a coveted spot in the quadrant's top university. But her new supervisor is a woman who's not about to let an upstart like Aurora get anything close to a break. And her home colony is dying. Aurora's research project is their last hope, but only if she can complete it in time. One night out is all she'll allow herself. One night to forget her troubles. She never expects to meet a man who dazzles all her senses.

The colonists from the Pathfinder have arrived on Kaguya, a planet with low gravity but a very dense atmosphere. It’s fun to jump around, but the air makes you loopy - and worse than that, the heavy atmosphere means that wind storms, although rare, are absolutely devastating. Zero and Nyx help to get everything locked down before the first big storm, but they stumble onto a group of thieves who have stolen some mining equipment. Before the kids have a chance to get away and tell anyone, the storm hits and the massive winds carry them far away.

Stick and Rudder is the first exact analysis of the art of flying ever attempted. It has been continuously in print for 33 years. It shows precisely what the pilot does when he flies, just how he does it, and why. Because the basics are largely unchanging, the book therefore is applicable to large airplanes and small, old airplanes and new, and is of interest not only to the learner but also to the accomplished pilot and to the instructor himself.

In the future: A united Earth, to deal with the problem of population control, divides its population into classes of citizen and non-gratis. To be born a non-gratis means a life of little freedoms and the constant possibility of being assigned to work on a colony. Lacking citizenship, every aspect of their life is controlled from where they live down to marriage and childbearing regulations. The only possible escape from life as a non-gratis is to qualify for one of the limited slots available for entrance into the military.

Exposed as the Second Dreamer, Araminta has become the target of a galaxywide search by government agent Paula Myo and the psychopath known as the Cat, along with others equally determined to prevent---or facilitate---the pilgrimage of the Living Dream cult into the heart of the Void. An indestructible microuniverse, the Void may contain paradise, as the cultists believe, but it is also a deadly threat. For the miraculous reality that exists inside its boundaries demands energy....

Neil deGrasse Tyson's number-one New York Times best-selling guide to the cosmos, adapted for young listeners. From the basics of physics to big questions about the nature of space and time, celebrated astrophysicist and science communicator Neil deGrasse Tyson breaks down the mysteries of the cosmos into bite-sized pieces.

For millennia, the planet Harmony has been protected by the Oversoul, an artificial intelligence programmed to prevent thoughts of war and conquest from threatening the fragile remnant of Earth's peoples. But as the Oversoul's systems have begun to fail, a great warrior has arisen to challenge its bans.

The first of the acclaimed Vatta's War books, the exciting military science fiction series that features a swashbuckling spaceship-captain heroine who mixes commerce with combat.

Deep within Syndicate World space, the Alliance fleet continues its dangerous journey home under the command of Captain John “Black Jack” Geary—revived after a century spent in suspended animation. Geary’s victories over the enemy have earned him both the respect—and the envy—of his fellow officers…

Humanity is struggling to hold out against a hostile takeover by an alien race that claims to be on a religious mission to bring all sentient life to its God at the End of Time. But while billions of cocooned humans fill the holds of the Olyix's deadly arkships, humankind is playing an even longer game than the aliens may have anticipated. From an ultra-secret spy mission to one of the grandest battles ever seen, no strategy is off the table. Will a plan millennia in the making finally be enough to defeat this seemingly unstoppable enemy?

Beryl Markham, the first person to fly solo across the Atlantic from east to west, describes her childhood on a farm in Kenya, her apprenticeship as a horse trainer, and her later career as a pioneer aviator who piloted passengers and supplies in a small plane to remote corners of Africa.

New York Times best-selling author Eric Flint’s 1632 presented listeners with a fascinating alternate history of the Thirty Years’ War, through the eyes of a West Virginia community tossed back in time to 17th-century Germany. Here, Flint teams up with acclaimed science fiction author David Weber to continue his epic tale. In 1633, the West Virginians attempt to use their modern-day knowledge to build a resistance against the forces of France, Spain, and England.

A troubled young woman is recruited by a race of ancient alien explorers to be their emissary to save the human race from extinction. The problem is that not everyone believes the world is doomed, and not everyone trusts the aliens' motives. Holly Burton will have to overcome opposition from world leaders, attacks by religious zealots, assassination attempts, intractable bureaucracies, and her own fears and doubts if she is to save the human race, not just from the coming apocalypse, but from itself.

He finally escaped the cycle of war and death only to find himself kidnapped, taken to a new universe where nothing makes sense. A world where nothing is familiar and insane robots, killer AI, and otherworldly beings he can hardly comprehend are the norm. He must learn to survive these constant threats to his very survival, all the while learning that these new experiences are changing him, molding him into something new...something extraordinary.

Some starship captains explore strange new worlds, seeking out new life and new civilizations. Some lead missions of discovery through wormholes to the other side of the galaxy. Then there's Captain Iridius B. Franklin, someone who spent too long seeking out strange new bars and new alien cocktails.

Soldier and adventurer John Carter tells the story of how he returns to the planet Mars to be reunited with his love, the Martian princess Dejah Thoris. With his great friend Tars Tarkas, mighty Jeddak of Thark, Carter sets out in search of his princess. But Dejah Thoris has vanished. And Carter becomes trapped in the legendary Eden of Mars, from which none has ever escaped alive.

A cease-fire that has lasted seven years... Worlds half-destroyed that have been rebuilt anew... Friends and crewmates scattered light-years apart... New leaders that would be kings... The Jung threat has been renewed, in ways not imagined. It will take a new savior to inspire the masses, and once again lead those willing to fight against oppression. But who will the new savior be?

Brady Garrett needs to go home. He's a conscripted recruit on Defender Three, one of a network of stations designed to protect the Earth from alien attack. He's also angry, homesick, and afraid. If he doesn't get home he'll lose his family, but there's no way back except in a body bag. Cameron Rushton needs a heartbeat. Four years ago Cam was taken by the Faceless - the alien race that almost destroyed Earth.