Earth Space Science

They’re here. They’ve arrived. And they’re all eyes. The Voltarian scouting party - illegal aliens extraordinaire - on a top-secret expedition led by one Jettero Heller, Royal Officer of the Fleet. His mission: rescue the planet from pollution - and make it safe for the upcoming invasion. His problem: The planet may not want to be saved - and the invasion may just be a trick.

Billions died before humanity clawed its way up from the brink of extinction, defeating the aliens that treated us like mere beasts. After years of agonizing toil and hardship, we have finally built a first-rate fleet, forcing our hostile neighbors to accept our freedom. But in the center of the galaxy, a bitterly vengeful woman discovers the secret of the Plutonians. She is going to awaken them so the extraterrestrials can attack us with the deadliest ships in existence. If the Plutonians destroy our fleet, the others will surely swarm in like locusts and kill us.

With the Milky Way galaxy engaged in a life-or-death struggle against the evil Sol-Kor Colony, Adam Cain and Riyad Tarazi are given the chance to end the war once and for all: Travel into another universe and assassinate the queen of the Sol-Kor. If their mission succeeds, it could end the war with a single stroke, saving trillions upon trillions of innocent creatures from the ravenous, flesh-eating invaders. If not...

A huge space station orbits the Earth, holding the last of humanity. It's broken, rusted, falling apart. We've wrecked our planet, and now we have to live with the consequences: a new home that's dirty, overcrowded, and inescapable. What's more, there's a madman hiding on the station. He's about to unleash chaos. And when he does, there'll be nowhere left to run.

In researching one of history's greatest scientific quests, a mission to measure the Earth and define the meter, Ken Alder stumbled on a 200-year-old secret: The meter, it turns out, is in error. This is a story of two men, a secret, and a timeless human dilemma: is it permissible to perpetuate a small lie in the service of a larger truth?

The war between the seven alien races of the Confederation and Earth heats up as the two come into direct conflict over the former Human Empire. The people or Earth are determined to free it, and the Confederation is determined to keep it under their strict control. Fleets meet in combat as the fate of worlds is decided. Earth is hopelessly outmatched as the Confederation controls thousands of inhabited planets.

On board an X101 stealth aircraft, Lauren, Jack, and Mike arrive at the secret location of Sky Dreamer Corp - a place equipped with technology and resources far more advanced than anything they could have ever imagined.

Satellites may exist out in space, but they let us study Earth from the outside looking in. From climate change to natural disasters and more, find out how scientists are using satellites to tackle some of our world's most challenging problems.

In this epic conclusion to the first series in the Human Chronicles Saga, Adam Cain and his band of Human warriors are presented to the Supreme Leader of the Galaxy. With only minutes to live, Adam convinces the Juirean leader that Humans are not the enemy, but that both their races have been part of a diabolical plot for galactic domination orchestrated by the Klin. And yet just when the truth dawns on the Juireans, the planet Juir is attacked by Kracori forces, which leads to a whole new set of problems for Adam and his band of Human Super-Men.

In the fourth book of the Extinction Wars series, Abaddon commands a Karg-Jelk Super Fleet bent on annihilating humanity. He's the galaxy's most ruthless strategist wielding superior technology. That includes the perfect raid-ships, able to teleport anywhere at will. Humanity has Commander Creed, and he has his Assault Troopers. He's going to take the fight to the enemy. He's buying time, learning secrets and setting up for the greatest space battle in the Orion Arm.

The marauders, terrors from deep space, hit us hard. Our starships shattered. Our armies collapsed. Our cities crumbled. As Earth smolders, the marauders imprison us in camps. They farm us like cattle. They torture us for sport. Earth weeps. But there is hope. The Ghost Fleet, an ancient alien armada, might still exist in deep space. In a single starship, Sergeant Marco Emery and his friends seek this mythical fleet. They must find it. They must return with its might. Or the marauders will kill us all.

Flat Earth has long been denigrated, derided, and disparaged as being the most crackpot of all conspiracy theories, marginalized, mocked, and ridiculed for centuries as being an ignorant ancient unscientific worldview, but the facts of the matter are far from what you have been told. When thoroughly examined and diligently researched with an open-mind, any skeptical critical-thinker will find it is actually the tilting, wobbling, spinning space-ball Earth promoted by NASA and taught in schools that is truly ridiculous and unscientific.

At last, the Earth and the Colonial Union have begun formal discussions about their relationship in the future - a chance for the divisions in humanity to be repaired. The diplomats and crew of the Clarke are on hand to help with the process, including Ambassador Ode Abumwe and CDF Lieutenant Harry Wilson, both of whom were born on Earth. But not everyone wants the human division to be repaired.... And they will go to great lengths to make sure it isn’t....

Machines. They fly our starships. Mine our asteroids. Connect us to one another. They serve us without question. But what if the machines rebelled? We call it the Singularity. The day the machines wake up. A day that can destroy humanity. Marco and Addy are heroes, veterans of the Alien Wars. Today they are civilians, married, and peacefully raising a family. That peace will soon shatter. For years, Marco and Addy fought aliens, terrors from deep space. But how can they fight Earth's machines, an enemy humanity itself created?

The grays, terrors from deep space, overwhelm our fleet. Our starships burn. Our armies shatter. Our cities crumble. Hope is all but lost. Captains Marco Emery and Addy Linden launch a desperate quest. Against all odds, they must reach the grays' world. They must travel deep behind enemy lines. They must find the grays' source of power - and destroy it.

We call them the grays. For years, they lurked in shadows. For years, they struck from the dark. Kidnapping us. Torturing us. Studying us. Now they unleash their full fury. Thousands of their saucers attack Earth. Our armies crumble. Earth burns. Yet from the fire, heroes rise. Marco Emery. Addy Linden. Einav Ben-Ari. Names everyone on Earth knows. The names of legends. Names now whispered as a prayer.

For years, they stalked us. Kidnapped us. Dissected us. For years, we feared them. Some call them "gray aliens". Some claim they crashed in Roswell. Others say they're just a myth. But legends often spring from terrifying truths. There are monsters in the dark. And their evil knows no bounds. We've faced aliens before. But nothing like this. This enemy is stronger, smarter, and crueler by far. And they want to kill us all. But we refuse to fall. We will muster all our courage. All our strength. We will tell the enemy: "Earth will rise!"

The marauders, vicious alien predators, brought us to our knees. They destroyed our fleets. They burned our cities. They butchered millions. But now we fight back. Across the ruins of Earth, we rise in rebellion. In the depths of space, we seek allies. And our last warship prepares for one final battle. It's a time for heroes. A time to show our human pride. Because Earth is our home. Earth is our birthright. Earth is eternal. We will save it. Or we will die on our feet.

Five years ago, we won our first galactic war. We defeated the scum, a race of alien centipedes. But the marauders are stronger, smarter, and crueler by far. And they will show us no mercy. Marco Emery, hero of the last war, struggles today as a civilian. Shell shock cripples him. Nightmares haunt him. Yet now he must become a soldier again. Now his old platoon must reunite. Together, they must defeat the greatest threat Earth has ever known. Or humanity will fall.

Former NASA astronaut Terry Virts offers an insider's guide to astronauting—a behind-the-scenes look at the training, the basic rules, lessons, and procedures of space travel, including how to deal with a dead body in space, what it’s like to film an IMAX movie in orbit, what exactly to do when nature calls, and much more, in 51 brief chapters.