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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.

It is 1939. The world stands on the brink of Armageddon. In the Soviet Union, years of revolution, fear and persecution have left the country unprepared to face the onslaught of Nazi Germany. For the coming battles, Stalin has placed his hopes on a 30-ton steel monster, known to its inventors as the T-34 tank, and, the 'Red Grandma's Feather Bed download ebook Coffin' to those men who will soon be using it. But the design is not yet complete. And when Colonel Nagorski, the weapon's secretive and eccentric architect, is found murdered, Stalin sends for Pekkala, his most trusted investigator. Stalin is convinced that a sinister group calling itself the White Guild, made up of former soldiers of the Tsar, intend to bring about a German invasion before the Red Coffin is ready. While Soviet engineers struggle to complete the design of the tank, Pekkala must track down the White Guild and expose their plans to propel Germany and Russia into conflict.

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Author: James F. Kasting
Number of Pages: 352 pages
Published Date: 26 Aug 2012
Publisher: Princeton University Press
Publication Country: New Jersey, United States
Language: English
ISBN: 9780691156279
Download Link: Click Here
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The Last Town on Earth