Earth Space Science

A new generation comes of age 18 years after humanity arrived on the colony planet Gaia. Now threats from both within and outside their Trident threaten everything they've built. The discovery of an alien installation inside Gaia's moon, terrorist attacks and the kidnap of a man's daughter stretch the community to breaking point, but only two men stand a chance of solving all three mysteries before the makeshift planetary government shuts everything down.

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...

Former elite Federation soldier, now turned space pirate, Jackson Burke has done his best to turn his life around - for the better. He isn't prepared when fate leaves a woman's safety totally in his hands. Since heroes don't leave a damsel in distress - and despite being outlaw pirates - the crew considers themselves the good guys, so Jackson assumes responsibility for the beauty.

They say hard times create strong men, strong men create good times, good times create weak men, and weak men create hard times. Marco Emery was born into hard times. He was raised in war. He grew up in bomb shelters and on battlefields, fighting to survive. He became a soldier. A war hero. Then, after vanquishing his last enemy, he retired to raise a family. And Earth moved on.

Against all odds, the Ark and her 30,000 survivors have reached Tau Ceti G to begin the long, arduous task of rebuilding human civilization. Meanwhile, on the other side of the world, Tau Ceti G's natives, the g'tel, are coming to grips with the sudden appearance of what many believe are their long-lost gods.

Nikola Tesla (1856 -1943) was a Serbian American inventor, engineer, and physicist. In his work Talking with Planets, the prodigious inventor describes receiving radio waves from nonterrestrial sources.

From beyond the galaxy. From beyond human understanding. They came with one mission. To kill us all. Some call them aliens. Others call them gods. Their tentacles grip worlds. Their malice destroys civilizations. They've crushed a million planets. Now they crave Earth. Marco and Addy, veterans of the Alien Wars, are retired. They fought for many years. They saved Earth many times. Now they're raising their children in a peaceful forest. They've earned this peace. But Earth needs them. More than ever. Because a war is coming. A war unlike any before. A war that can devour our very galaxy.

Captain Clayton Cross and his crew encountered the Kyra, an advanced race of avian carnivores. They fled this first encounter, but the Kyra beat them back to Earth by almost a century. Earth lost the war in just a few weeks. Our cities burned, and billions died. After we surrendered, the Kyra helped us to rebuild, but on their terms, confining us to city centers and building high walls to keep us in.

We are the last humans. We are hunted. We are refugees. We must return to Earth. The alien scorpions attack us across the galaxy. They butcher millions. Humans are now an endangered species. But we have not given up. We still have a few starships. We still have some hope. And we have a map home. On Earth, we can be free again. On Earth, we can stand tall. On Earth, we can rebuild what we have lost. Earth is but an echo, calling from beyond the darkness. We will answer her call. We will find our lost world. We will defeat our enemies. We will rise again!

The astronauts headed to the moon in December 1972 thought they knew what to expect. They would soon be exploring the moon’s surface in a lunar rover, traveling farther than anyone before them. They would be collecting soil and rock samples for study back on Earth and could expect to learn about the moon’s physical makeup and age.

Earth is rising in the House of Voltar.... And there’ll be hell to pay! That’s right. The invasion is on...and it’s coming soon to a galaxy near you. The action couldn’t be hotter, and the plot couldn’t be more diabolical. Earth is coming to Voltar - and the Voltarians won’t know what hit them. Murder, blackmail, drugs, psychoanalysis, PR firms, sex-crazed teenyboppers, riots in the streets, women in chains. These are the powerful secret weapons of war.

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.

Hackett, in his trusty ship the Perseus, is not just a space traveller—beginning his travels with an expedition to Neptune and back—but, thanks to the time-dilation effect, a time traveller as well. His new mission will take him to Andromeda, to get a close-up look at the constellation which will eventually crash into the Milky Way, and give humanity a heads-up about the challenges which are coming. A mission which will take him five million years to complete. Not only is Hackett exploring unknown space, but he will return to a vastly different time.

For anyone who has ever looked up at the stars and wondered what it all means, Isaac Asimov's Guide to Earth and Space is indispensable. In this audio, Asimov's gift for popular and entertaining exposition has never been better deployed, with his succinct answers to the most intriguing questions about planets, stars, and galaxies. What are quasars? How was the Earth formed? Puzzled by pulsars?

The unabridged and enhanced 2nd edition of Zetetic Astronomy, formulated in the 19th century by Samuel Rowbotham, presents a flat-earth cosmology grounded in direct sensory observation rather than theoretical abstraction. Rejecting Newtonian and Copernican astronomy, Rowbotham argued that the Earth is a flat, stationary plane with the Sun, Moon, and stars moving in circular paths above it, asserting that empirical evidence—such as the apparent flatness of horizons and the behavior of water surfaces—supports this model.

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.

With wonder, wit, and flair - and in record time and space - geophysicist David Bercovici explains how everything came to be everywhere, from the creation of stars and galaxies to the formation of Earth's atmosphere and oceans to the origin of life and human civilization. Bercovici marries humor and legitimate scientific intrigue, rocketing listeners across nearly 14 billion years and making connections between the essential theories that give us our current understanding of topics as varied as particle physics, plate tectonics, and photosynthesis.

Adam Warrington is an intelligent, courageous young man from a provincial, repressive planet that has reverted to a kind of fundamentalist puritanism. By nature a freethinker and individualist, Adam has a tough time of it until he's accepted at one of the Empire's great schools, the University of Sol on Mars. Then he's off on the greatest adventure of his life. His journey through space includes dining with aliens, air swimming, a hijacking, a space trial, and an attempted murder.

Just days before Jake Saunders plans on proposing to the love of his life, Jake is called upon once again to save his home, Earth. The Earthen Legion troops and its allies think they’re battling only pirates, but a new, more powerful foe from another galaxy flanks their forces and invades, in search of a weapon the planet didn’t even know it had.

Opportunities there are few and far between...that is, unless you're willing to put on a uniform. For ace-pilot Deborah Allen Riker (aka “Admiral Dare”), life had never been easy. She's defended Earth against countless enemies, both alien and human alike. Now she's retired. Committed to a life of solitude and studying the aliens she spent a lifetime fighting...until she finds herself dragged into a new conflict. A conflict she never saw coming.