Space Science

Authors Christopher Knight and Alan Butler realized that the ancient system of geometry they presented in their earlier breakthrough study works as perfectly for the Moon as it does the Earth. On further investigation, they found a consistent sequence of beautiful integer numbers when looking at every major aspect of the Moon - no such pattern emerges for any other planet or moon in the solar system. In addition, Knight and Butler discovered that the Moon possesses few or no heavy metals and has no core - something that should not be possible.

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.

In the stunning continuation of the epic adventure begun in Hyperion, Simmons returns us to a far future resplendent with drama and invention. Onthe world of Hyperion, the mysterious Time Tombs are opening. And the secrets they contain mean that nothing - nothing anywhere in the universe - will ever be the same.

John Perry did two things on his 75th birthday. First he visited his wife's grave. Then he joined the army. The good news is that humanity finally made it into interstellar space. The bad news is that planets fit to live on are scarce—and alien races willing to fight us for them are common. So: we fight. To defend Earth, and to stake our own claim to planetary real estate. Far from Earth, the war has been going on for decades: brutal, bloody, unyielding. Earth itself is a backwater.

The Interdependency, humanity’s interstellar empire, is on the verge of collapse. The Flow, the extra-dimensional conduit that makes travel between the stars possible, is disappearing, leaving entire star systems stranded. When it goes, human civilization may go with it - unless desperate measures can be taken. Emperox Grayland II, the leader of the Interdependency, is ready to take those measures to help ensure the survival of billions. But nothing is ever that easy.

When the Imperial prison barge Purge—temporary home to five hundred of the galaxy’s most ruthless killers, Rebels, scoundrels, and thieves—breaks down in a distant part of space, its only hope appears to lie with a Star Destroyer found drifting and seemingly abandoned. But when a boarding party from the Purge is sent to scavenge for parts, only half of them come back—bringing with them a horrific disease so lethal that within hours, nearly all aboard the Purge die in ways too hideous to imagine.

In the course of our enduring quest for knowledge about ourselves and our universe, we haven't found answers to one of our most fundamental questions: Does life exist anywhere else in the universe? Ten years and billions of dollars in the making, the Mars rover Curiosity is poised toanswer this all-important question.

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.

At long last, an extraterrestrial civilization reached out and made the First Contact. However, no one on Earth took their communique for the genuine article. In a similar vein, very few people appreciated just how little time our new suzerains had promised to keep our planet safe. Regardless, the end of their message showed humankind how to access a mysterious game. The objective of this game is unclear. No one can say where its servers are located, and its inner workings are beyond comprehension.

The Amazon rainforest holds a world-changing secret—a ship lost to time from another world. College student Will Kaufman unearthed the biggest archaeological discovery in human history… he just needs to find a way back to Earth to tell people about it. Four thousand years ago, a Federation bounty hunter Void ship crashed on a remote and primitive planet. There it remained until Will found it and accidentally reactivated it, launching him light-years away.

As METAtropolis: Green Space moves into the 22nd Century, human social evolution is heading in new directions after the Green Crash and the subsequent Green Renaissance. Nearly everyone who cares to participate in the wired world has become part of the "Internet of things", a virtual environment mapped across all aspects of the natural experience. At the same time, the serious back-to-the-land types have embraced a full-on paleo lifestyle, including genetically engineering themselves and their offspring.

The Traitor Host of Horus Lupercal tightens its iron grip on the Palace of Terra, and one by one the walls and bastions begin to crumple and collapse. Rogal Dorn, Praetorian of Terra, redoubles his efforts to keep the relentless enemy at bay, but his forces are vastly outnumbered and hopelessly outgunned. Dorn simply cannot defend everything. Any chance of survival now requires sacrifice, but what battles dare he lose so that others can be won? Is there one tactical stroke, one crucial combat, that could turn the tide forever and win the war outright?

On the 13th day of Secundus, the bombardment of Terra began. With the solar defences overcome through the devastating strength of the Traitor armada and the power of the warp, Horus launches his assault on the Throneworld in earnest. After withstanding a ferocious barrage of ordnance, an immense ground war commences outside the Palace, with every inch gained paid for in the lives of billions.

Beyond the edge of the galaxy lies the Unknown Regions: chaotic, uncharted, and near impassable, with hidden secrets and dangers in equal measure. And nestled within its swirling chaos is the Ascendancy, home to the enigmatic Chiss and the Nine Ruling Families that lead them. The peace of the Ascendancy, a beacon of calm and stability, is shattered after a daring attack on the Chiss capital that leaves no trace of the enemy.

Sera must return to Khardine, where new challenges await, and preprations for the march on Airtha begin. Meanwhile Tanis turns toward the Praesepe Cluster. There, a handfull of interstellar nations hold out against the encroaching Nietzschean Empire. Sera's Hand agents are certain that the Nietzscheans are backed by Orion, and Nadine is sent in ahead to connect with agents in Septhia before the I2 arrives.

The Sith Empire is in flux. The Emperor is missing, presumed dead, and an ambitious Sith lord’s attempt to seize the throne has ended fatally. Still, Darth Karrid, commander of the fearsome Imperial battle cruiser Ascendant Spear, continues her relentless efforts to achieve total Sith domination of the galaxy. But Karrid’s ruthless determination is more than matched in the steely resolve of Theron Shan, whose unfinished business with the Empire could change the course of the war for good. Though the son of a Jedi master, Theron does not wield the Force - but like his renowned mother, the spirit of rebellion is in his blood.

Join Desmond as he learns to manipulate mana — a source of power that exists beyond the reach of most people in the universe — meets vastly different alien species, risks life and limb, all while trying to pass classes. If he’s lucky, he will find someone he can trust out here amongst the weird. If he's very lucky, maybe someone he can love.

For two years, the Castle Federation and the Alliance of Free Stars have stood against Marshal James Walkingstick of the Terran Commonwealth and his mission of conquest. Battles have been won and lost, worlds have died, and soldiers like Admiral Kyle Roberts have been forged on the anvil of war. But the Alliance cannot win. The Commonwealth has more worlds, more ships, more soldiers. They claim their victory is inevitable. That history is on their side. Refusing to accept the Commonwealth's future, the Alliance embarks on a do-or-die mission to end the war in one strike.

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.

Caleb Mitchell gave up everything to protect his home. Shunned by friends and family for abandoning the pacifist beliefs of their religion, abandoned by the love of his life, he left his home world of Canaan to go to the Commonwealth Military Academy on Earth and train to fight in the looming war against the implacable alien threat of the Tahni Imperium. When a training mission with a crew of cadets winds up caught in the middle of one of the worst battles of the war, Cal and his fellow students are officially declared dead.