Space Science

The Alliance has toppled the tyrannical empire. It should be a time for celebration, but not for fighter pilot Captain Alisa Marchenko. After barely surviving a crash in the final battle for freedom, she's stranded on a dustball of a planet, billions of miles from her young daughter. She has no money or resources, and there are no transports heading to Perun, her former home and the last imperial stronghold. But she has a plan.

It has been over a year since the UnArcana Worlds of the Protectorate of the Mage-King of Mars seceded, shattering the unity of the human race. The new Republic of Faith and Reason has raised new banners in defiance of the power of the Protectorate's Mage aristocracy. Now, Hand Damien Montgomery commands a relief mission to a Republic world ravaged by famine. His humanitarian mission collides with a newborn military beginning to flex its muscles - and a newborn nation prepared to accept no violations of its sovereignty, regardless of their needs.

What is the nature of space and time? How do we fit within the universe? How does the universe fit within us? There's no better guide through these mind-expanding questions than acclaimed astrophysicist and best-selling author Neil deGrasse Tyson. But today, few of us have time to contemplate the cosmos. So Tyson brings the universe down to Earth succinctly and clearly, with sparkling wit, in digestible chapters consumable anytime and anywhere in your busy day.

A hot, stinking, dumpster fire. And most days I don't know if the legionnaires are putting out the flames, or fanning them into an inferno. A hostile force ambushes Victory Company during a reconnaissance-in-force deep inside enemy territory. Stranded behind enemy lines, a sergeant must lead a band of survivors against merciless insurgents on a deadly alien world somewhere along the galaxy's edge. With no room for error, the Republic's elite fighting force must struggle to survive under siege while waiting on a rescue that might never come.

When a mysterious alien probe materializes from Jump Space and remotely reprograms The Bay's star drive, Sam and his crew begin an involuntary voyage that takes them three thousand light years out of known space, across the galactic rift to the Sagittarius Spiral Arm, and into the heart of an ancient, previously unknown civilization - the first encountered by Humans and the other five races of the Cottohazz-Stellar Commonwealth - in over a century. The genetically altered immortals known as the Guardians soon turn murderously violent.

Sandstorm: Publisher's Pack contains books one and two of the Sandstorm series. Sandstorm, book one: Something is hunting the inhabitants of Ravar. For three generations, the colonists on Ravar have been stranded on a harsh planet, forced to survive in a desert environment where only the scrappiest animals and the heartiest plants survive. Most live without the foolish hope that Earth's supply ships will ever grace the skies again. Trapped in a sandstorm, Neena Xylance struggles to make her way back to her colony.

A world recovering from a devastating plague. A brutal enemy threatening invasion. A young man seeking to escape the shadow of his father. A ship manned by a crew of fresh academy graduates. A top-secret experimental propulsion system. A questionable alliance with a mysterious green-eyed woman. What destiny has in store for the crew of the UES Aurora is far greater than any of them could ever imagine. And this is only the beginning....

When the Terran Union has a mission that must not fail, it calls upon the Strike Marines. They are trained to improvise, adapt, overcome and win every fight. Terran Strike Marines: Publisher's Pack is an action-packed military science-fiction adventure set in the best-selling Ember War universe. This pack includes The Dotari Salvation and The Rage of Winter.

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....

The Majority always gets what it wants. Thomas Hill just wishes it didn't want him. There's no way to escape a galactic mob of mind readers, no way for him to blend in with his foster family and other average Americans. Because Thomas invented a way to save his own life. His custom medicine halts the progress of his degenerative neuromuscular disease. Newscasters proclaim him the next Einstein, but mere humans have no idea his bioengineered processing capacity rivals that of a supercomputer. They just think he's smart. However, there are other bioengineered supergeniuses in the Majority.

I never believed in UFOs—until I found one in my backyard… Alex is just a normal guy who works at a computer repair shop and dreams away his life. That is, until one day, he literally stumbles across a hidden spaceship. Together with his best friends, Joey and Lucy, he explores the vessel. They find the pilot dead, but the sentient ship AI is very much alive—and she needs their help. The friends decide to embark on an adventure into the unknown. Soon, they find themselves on a crazy ride through space, facing aliens, pirates, smugglers, and humorless space authorities… Will Alex and...

Civil War veteran John Carter is transported to a dying planet, where he must elude capture by giant green barbarians to rescue a Martian princess from certain doom. In this landmark of science fiction, the myths and mystery of the red planet supply a vibrant backdrop for a swashbuckling epic.

It's been a year since Binti and Okwu enrolled at Oomza University. A year since Binti was declared a hero for uniting two warring planets. A year since she found friendship in the unlikeliest of places. And now she must return home to her people, with her friend Okwu by her side, to face her family and face her elders. But Okwu will be the first of his race to set foot on Earth in over a hundred years, and the first ever to come in peace.

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.

Have you ever had a bad day? Sergeant Paul Mitchell had. It was the kind of bad day where nothing went right, everything that could go wrong went wrong, and everyone died. He knew that was always a possibility in the marines, but it really sucked when it happened to you: it wasn't your fault, and you still took the fall for everything. With his career dead and buried, he's forced to make it as a freelancer; a jack of all trades but a master of none. Just when he thought life couldn't get any worse a couple of stupid kids proved him wrong...again.

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.

A Rain of Fire: The dark forces of the Neo Hegemony strike, sweeping across the worlds of the Arcadian sector and crushing all in their path. One system stands against the onslaught: the Kingdom of New Avalon. But the men and women of their expeditionary forces are trapped behind enemy lines on a besieged planet. This box set also features Titan's Vengeance and A Relentless Fury.

It seemed the unthinkable had happened. Someone had actually targeted the Ghalian, an order of assassins known and feared across the systems. It was madness. Only a fool would go after the likes of them. But, it seemed, the galaxy had no shortage of fools. Retaliation most bloody was in order, and one man stood ready to spring into action. Hozark was his name, and he was no ordinary man. He was a Master Ghalian, an assassin skilled in the ways of death. Practical, mechanical, magical, to him it made no difference.

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.

Hugo Award winner Harry Turtledove is the master of alternate history. In American Front he envisions World War I as it may have been if fought on American soil. The United States and Germany clash with the Confederacy, France, and Britain as the machines of modern warfare litter the landscape with carnage. Meanwhile, oppressed southern blacks head toward a fateful confrontation.