Space Science

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.

Given the fact that there are perhaps 400 billion stars in our galaxy alone and perhaps 400 billion galaxies in the universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormity of the numbers almost demands that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials?

First contact with a mysterious race of aliens reveals an unusual request; a family's pet dog comes to grips with the newly bestowed gift of human-like intelligence; a poet, in danger and alone on a distant world, makes unlikely allies; hundreds of years in the future, a famous hermit lives in the sea above the now-underwater Harvard University; former friends navigate unsteady peace between human refugees and the technologically superior race that saved them; in a future where human life can be infinitely extended through cybertronic rebirth, one woman declines immortality.

This survival guide for new pilots identifies the pitfalls waiting inside the killing zone, the period from 50 to 350 flight hours when they leave their instructors behind and fly as pilot in command for the first time. Although they're privately certified, many of these unseasoned aviators are unaware of the potential accidents that lie ahead while trying to build decision-making skills on their own - many times falling victim to inexperience.

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.

Spearpoint, the last human city, is an atmosphere-piercing spire of vast size. Clinging to its skin are the zones, a series of semi-autonomous city-states, each of which enjoys a different---and rigidly enforced---level of technology. Following an infiltration mission that went tragically wrong, Quillon has been living incognito, working as a pathologist in the district morgue.

The Imperium does not take it lightly when its slaves revolt. Earth's population has been decimated, and Captain Bill Henderson is fleeing imperial attack dogs with his crew and two million refugees—the last of humanity. Starship Omega could be the answer to turning the tide and finally ending the Imperium's tyranny. But not in its current form. The Omega is capable of so much more—but to unlock the enormous ship's true power, Bill must lead those under his command into the heart of empire space.

Few perspectives epitomize the sheer drama and sacrifice of combat more perfectly than those of the fighter pilots of World War II. As romanticized as any soldier in history, the World War II fighter pilot was viewed as larger than life: a dashing soul waging war amongst the clouds. In the 65-plus years since the Allied victory, stories of these pilots' heroics have never been in short supply. But what about their adversaries - the highly skilled German aviators who pushed the Allies to the very brink of defeat?

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.

On the run and out of chances, he guides his ship and crew into the heart of a relic older than the galaxy itself - and find himself on the edge of an eternal war he never knew existed. The relic is a mech, lost to history and forgotten by all who remain. Built by an ancient race to be the ultimate weapon, the machine is capable of unspeakable destruction, and its discovery could unhinge the balance of power throughout known space.

Best-selling author, superstar physicist, and cofounder of the World Science Festival Brian Greene (The Elegant Universe, The Fabric of the Cosmos) and an ensemble cast led by award-winning actor Paul Rudd (Ant-Man) perform this dramatic story tracing Albert Einstein's discovery of the general theory of relativity.

In a universe run by corporations, where profit matters more than life, how can an orphan with no skills, no money, and no prospects survive? When Ishmael Wang's mother dies in a senseless accident, he's given a choice: leave the planet on his own, or the company will remove him. To avoid deportation Ishmael finds work as a mess deck attendant on an interstellar freighter.

Earth Government turned soldiers into cyborgs to terraform Mars. After a decade of hard, lonely work they are little more than the machines as which they are treated—until the arrival of female settlers awakens feelings they have almost forgotten....

The hunt for the Higgs particle has involved the biggest, most expensive experiment ever. So exactly what is this particle? Why does it matter so much? What does it tell us about the universe? Was finding it really worth all the effort? The short answer is yes. The Higgs field is proposed as the way in which particles gain mass - a fundamental property of matter. It's the strongest indicator yet that the Standard Model of physics really does reflect the basic building blocks of our universe. Little wonder the hunt and discovery of this new particle produced such intense media interest.

Based on her unique upbringing, Jolie decides to join the USP military, requesting to be assigned to the Tasmanians SFG, an elite all male unit. The military brass agree to let her enter the school, thinking she couldn't possibly succeed and plan to make an example of her when she fails. Although Jolie is small, she is not what she appears. But can her martial arts enable her to survive the treachery of the military brass, the grueling of the school, the prejudices of the instructors, and the testosterone of an all-male class.

The Carryx—part empire, part hive—has waged wars of conquest for centuries, destroying or enslaving species across the galaxy in its conflict with an ancient and deathless enemy. When they descend on the isolated world of Anjiin, the human population is abased, slaughtered, and put in chains. The best and brightest are abducted, taken to the Carryx world-palace to join prisoners from a thousand other species. Dafyd Alkhor, assistant to a prestigious scientist, is captured along with his team.

New York Times best-selling author Eric Flint has received glowing critical praise for his Ring of Fire alternate history series. In this first installment, a West Virginia town is transported from the year 2000 to 1631 Germany at the height of the Thirty Years’ War. Thrust into conflict, the town residents must also contend with moral issues such as who should be considered a citizen.

U.S. Marine Tyson Gage has only one option left: to become a bounty hunter, then collect enough loot and upgrades to mount a rescue among the stars... Eight hundred years in the future. Joined by his dog and a beautiful woman who, despite their attraction, is on his last nerve, Gage must leave life on Earth behind for a universe of aliens, criminals, and hyperspace more deadly and awesome than he can imagine.

The Bobiverse is a different place in the aftermath of the Starfleet War, and the days of the Bobs gathering in one big happy moot are far behind. There’s anti-Bob sentiment on multiple planets, the Skippies playing with an AI time bomb, and multiple Bobs just wanting to get away from it all. But it all pales compared to what Icarus and Daedalus discover on their 26,000-year journey to the center of the galaxy.

Kay’s life is pretty boring. She goes to school, spends quiet evenings at home with her foster mom, and has the occasional brush with mischief thanks to her best and only friend Will. But everything is about to change. One night, Kay tags along on another one of Will’s adventures, and they both end up recruited by a talking fox to become Netherjacks, protectors of all the worlds. Once they arrive at the training academy, though, Will is paired with a legendary Netherwing mount and quickly rises in the trainee ranks, leaving Kay behind with barely a glance.