Earth Space Science

The colony ship Boone has launched for the planet Amir. Two more ships, hidden in a secret base in Africa, hasten their own plans to leave Earth as global war spirals toward a terminal doomsday. But RUPAC forces are seeking to prevent further launches, and in order to escape, Jack Hughes—Special Amphibious Reconnaissance Corpsman turned private military contractor—and his team of contractors must fight against local terrorist militias, RUPAC regulars…and the deep fear that everything and everyone they're fighting for is on the verge of annihilation.

It wasn’t supposed to be this way. Three days. That’s what they promised. But on Earth, the danger is unrelenting, and promises are hard to keep. Now Sheriff Duke is the one on the run, chased by an unexpected enemy eager to finish what they started. An enemy with an agenda that begins with killing him but ends with something worse. Much, much worse. Once the secret is out, the universe will never be the same.

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.

A hundred years before Ender's Game, humans thought they were alone in the galaxy. Humanity was slowly making their way out from Earth to the planets and asteroids of the Solar System, exploring and mining and founding colonies. The mining ship El Cavador is far out from Earth, in the deeps of...

The world named Mount Lookitthat was never meant for humans - it was shrouded in lethal mists. Life existed only on one plateau, unreachable except from space. But the disastrous decision to colonize the planet could not be reversed. So the settlers survived somehow - under a ruthless dictatorship. Mount Lookitthat was rebellion-proof. Then fate dealt the colonists a wild card named Matthew Keller, who had a talent that neither he nor anybody else knew about. At last the colonists had a glimmer of hope!

In Weird Earth: Debunking Strange Ideas About Our Planet, Donald R. Prothero demystifies these conspiracies and offers answers to some of humanity's most outlandish questions. Applying his extensive scientific knowledge, Prothero corrects misinformation that con artists and quacks use to hoodwink others about geology - hollow earth, expanding earth, and bizarre earthquakes-and mystical and paranormal happenings - healing crystals, alien landings, and the gates of hell.

Five years ago, the US Space Force became a reality. And while those writing the checks took things very seriously, the other military branches did not. As a result, Space Force was populated by undesirables. My name is Captain Ethan Stone, a decorated member of SEAL Team Six turned Space Force "recruit". Flash forward five years and between tenses. President West is in office. Power has shifted. And Space Force is defunded. With just a handful of us still living on base, we find ourselves being evicted. But before all of us can leave, aliens invade.

The heliopause protected Earth, keeping us safe from a violent galaxy. Or so we thought. Who knew it did more than keep us guarded? Who understood that its integrity was the only thing holding our beginner’s protection in place? If we'd known—if we’d understood, we’d have waited longer, a hell of a lot longer to pierce its veil. But when the USM Arrowheart passed through it and left our solar system, that protection ended and all hell broke loose. The aliens who'd been watching, waiting, and biding their time were ready. We weren’t. But there was hope.

Riveting and timely, a look at the research that is transforming our understanding of the cosmos in the quest to discover whether we are alone.

Today we are blessed with two extraordinarily successful theories of physics. The first is Albert Einstein's general theory of relativity, which describes the large-scale behavior of matter in a curved spacetime. The second is quantum mechanics. This theory describes the properties and behavior of matter and radiation at their smallest scales.

The stories in The Dying Earth introduce dozens of seekers of wisom and beauty, lovely lost women, wizards of every shade of eccentricity with their runic amulets and spells. We meet the melancholy deodands, who feed on human flesh and the twk-men, who ride dragonflies and trade information for salt. There are monsters and demons. Each being is morally ambiguous: The evil are charming, the good are dangerous. All are at home.

The Expanse meets The Godfather in Empire Earth (The Complete Trilogy): A Space Opera Boxed Set. Three full Books. 1,000 pages of space opera filled with intrigue, betrayal, and high-octane action that will keep you turning pages long into the night.

Only an ember of humanity survived the first Xaros invasion. Now the Xaros return to deliver the final blow to Earth and her defenders. A moon carrying an armada of Xaros drones unleashes its deadly cargo on the solar system. Fortress Mars stands between the enemy and an ill-defended Earth. While the battle rages over the red planet, the Breitenfeld must launch a desperate mission to Pluto to cut off enemy reinforcements. Earth stands on the brink of ruin, and humanity needs every hero it can find to turn back the tide of destruction.

Betrayed by allies. Beset by new foes. Earth faces its darkest hour since the Xaros invasion. The Toth come to the solar system with a fleet of warships, and they demand the only tool that can rekindle the human race. It falls on Marine Lieutenant Hale to negotiate a pact that will save the human race at the cost of its soul - or start a war with a race of alien predators.

Earth in 2064 is politically corrupt and in economic decline. The Long Depression has dragged on for 56 years, and the Bureau of Sustainable Research is hard at work making sure no new technologies disrupt the planned economy. Ten years ago, a band of malcontents, dreamers, and libertarian radicals bolted privately developed antigravity drives onto rusty seagoing cargo ships, loaded them to the gills with 20th-century tunnel-boring machines and earthmoving equipment, and set sail - for the moon.

The only planet to support life, Earth has a lot going for it. Think you know everything there is to know about our home planet? Think again. Discover more about the blue planet we call home.

The comparative utopia of 23rd-century Earth is about to go dreadfully awry when a seemingly benign alien race is abruptly revealed to be one of the worst threats humanity has ever faced. Driven by an intense religious extremism, the Olyix are determined to bring everyone to their version of god as they see it. But they may have met their match in humanity, who are not about to go gently into that good night or spend the rest of their days cowering in hiding.

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.

An essential, encylopedic introduction to physics, chemistry, and biology. You'll be firing on all cylinders with this science spectacular! The exciting exploration of biology, chemistry, and physics is vital reading for curious minds. Science becomes simple and straightforward, so you never get...

A menacing wasteland. A destructive new weapon. A planet on the edge of catastrophe. Sheriff Duke can’t rest. There’s no time to slow down. The threats are unending. The enemy unyielding. If he wants to stop the apocalypse, he’ll have to cross a treacherous wasteland where the cannibals and murderers are the least of his worries, and the creatures infesting the landscape aren’t the most dangerous thing in his path. The race is on, the doomsday clock is counting down, and if he fails it will be more than his wife and child that are caught in the fallout. It’ll be the world.