"Read it, please. Straight through to the end. Whatever else you were planning to do next, nothing could be more important." —Barbara Kingsolver Twenty years ago, with The End of Nature, Bill McKibben offered one of the earliest warnings about global warming. Those warnings went mostly unheeded; now, he insists, we need to acknowledge that we've waited too long, and that massive change is not only unavoidable but already under way. Our old familiar globe is suddenly melting, drying, acidifying, flooding, and burning in ways that no human has ever seen. We've created, in very short order, a new planet, still recognizable but fundamentally different. We may as well call it Eaarth. That new planet is filled with new binds and traps. A changing world costs large sums to defend—think of the money that went to repair New Orleans, or the trillions it will take to transform our energy systems. But the endless economic growth that could underwrite such largesse depends on the stable planet we've managed to damage and degrade. We can't rely on old habits any longer. Our hope depends, McKibben argues, on scaling back—on building the kind of societies and economies that can hunker down, concentrate on essentials, and create the type of community (in the neighborhood, but also on the Internet) that will allow us to weather trouble on an unprecedented scale. Change—fundamental change—is our best hope on a planet suddenly and violently out of balance.

The amazing science behind the search for Earth-like planets Ever since Carl Sagan first predicted that extraterrestrial civilizations must number in the millions, the search for life on other planets has gripped our imagination. Is Earth so rare that advanced life forms like us—or even the simplest biological organisms—are unique to the universe? How to Find a Habitable Planet describes how scientists are testing Sagan's prediction, and demonstrates why Earth may not be so rare after all. James Kasting has worked closely with NASA in its mission to detect habitable worlds outside our solar system, and in this book he introduces readers to the advanced methodologies being used in this extraordinary quest. He addresses the compelling questions that planetary scientists grapple with today: What exactly makes a planet habitable? What are the signatures of life astronomers should look for when they scan the heavens for habitable worlds? In providing answers, Kasting explains why Earth has remained habitable despite a substantial rise in solar luminosity over time, and why our neighbors, Venus and Mars, haven't. If other Earth-sized planets endowed with enough water and carbon are out there, he argues, chances are good that some of those planets sustain life. Kasting describes the efforts under way to find them, and predicts that future discoveries will profoundly alter our view of the universe and our place in it. This book is a must-read for anyone who has ever dreamed of finding other planets like ours—and perhaps even life like ours—in the cosmos. In a new afterword, Kasting presents some recent breakthroughs in the search for exoplanets and discusses the challenges facing space programs in the near future.

In the eighth book of the Alien Next Door series, Harris and Roxy have stowed away aboard Zeke's spaceship and are flying to his home planet of Tragas! Harris and Roxy have hidden away on Zeke's family's spaceship and are headed to Tragas! Zeke's parents freak out when they discover the kids aboard, but they've come too far to turn back. So that gives Harris and Roxy two whole days to explore the alien planet with Zeke while the ship refuels before they all have to fly back to Earth. But, much like Zeke had to on Earth, they have to blend in. Will they be able to hide the fact that they're the aliens on this new planet?

Humanity pushed its way to the stars - and encountered the Gbaba, a ruthless alien race that nearly wiped us out. Earth and her colonies are now smoldering ruins, and the few survivors have fled to distant, Earth-like Safehold, to try to rebuild. But the Gbaba can detect the emissions of an industrial civilization, so the human rulers of Safehold have taken extraordinary measures: with mind control and hidden high technology, they've built a religion in which every Safeholdian believes, a religion designed to keep Safehold society medieval forever. 800 years pass. In a hidden chamber on Safehold, an android from the far human past awakens. This "rebirth" was set in motion centuries before, by a faction that opposed shackling humanity with a concocted religion. Via automated recordings, "Nimue" - or, rather, the android with the memories of Lieutenant Commander Nimue Alban - is told her fate: she will emerge into Safeholdian society, suitably disguised, and begin the process of provoking the technological progress which the Church of God Awaiting has worked for centuries to prevent. Nothing about this will be easy. To better deal with a medieval society, "Nimue" takes a new gender and a new name, "Merlin." His formidable powers and access to caches of hidden high technology will need to be carefully concealed. And he'll need to find a base of operations, a Safeholdian country that's just a little more freewheeling, a little less orthodox, a little more open to the new. And thus Merlin comes to Charis, a mid-sized kingdom with a talent for naval warfare. He plans to make the acquaintance of King Haarahld and Crown Prince Cayleb, and maybe, just maybe, kick off a new era of invention. Which is bound to draw the attention of the Church...and, inevitably, lead to war. It's going to be a long, long process. And David Weber's epic Off Armageddon Reef is can't-miss sci-fi. Safehold Series 1. Off Armageddon Reef 2. By Schism Rent Asunder 3. By Heresies Distressed 4. A Mighty Fortress 5. How Firm A Foundation 6. Midst Toil and Tribulation 7. Like A Mighty Army 8. Hell's Foundations Quiver 9. At the Sign of Triumph At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

The solar system most of us grew up with included nine planets, with Mercury closest to the sun and Pluto at the outer edge. Then, in 2005, astronomer Mike Brown made the discovery of a lifetime: a tenth planet, Eris, slightly bigger than Pluto. But instead of adding one more planet to our solar system, Brown’s find ignited a firestorm of controversy that culminated in the demotion of Pluto from real planet to the newly coined category of “dwarf” planet. Suddenly Brown was receiving hate mail from schoolchildren and being bombarded by TV reporters—all because of the discovery he had spent years searching for and a lifetime dreaming about. A heartfelt and personal journey filled with both humor and drama, How I Killed Pluto and Why It Had It Coming is the book for anyone, young or old, who has ever imagined exploring the universe—and who among us hasn’t?

The Earth as you've never seen it before. The ancient Greeks called it Gaia; the Romans Terra. We know it simply as Earth, the planet we call home. And what a planet it is. Formed around 4.6 billion years ago from the debris of the big bang and long-dead stars, at first it was nothing special, but somehow it evolved to become the most amazing place in the known Universe. The only living planet we know of, it also has a very unusual moon, a remarkably dynamic surface, a complex atmosphere and a deeply mysterious interior. This is Planet Earth is dedicated to the wonders of planet Earth. Its past is long and dramatic and its future shrouded in mystery. Yet despite centuries of research, only now are we starting to understand Earth's complexity.