دانلود کتاب The Exploding Suns: The Secrets of the Supernovas

EXPLODING STARS…AND THE ORIGIN OF LIFE ON EARTHWhat is the story of the supernova? When the universe was born some 15 billion years ago, the “big bang” produced vast clouds of hydrogen and helium. Where did everything else come from—all the heavier elements, the planets, the star-strewn galaxies? Very recent astronomical research and new meteorite studies indicate that the answer lies in the heart of supernovas, the huge unstable suns whose immense convulsions and titanic explosions are the largest and most shattering events in the universe. Isaac Asimov, the most widely read science writer of our time, explains that out of the heart of supernovas have come our sun, planets, and ultimately, life and man.“Asimov’s flair for popularizing the most arcane scientific concepts is once again right on the mark in this highly readable book.”—SCHOOL LIBRARY JOURNAL“Asimov brings to his coverage…a zeal to explain complexities to lay audiences.…A skillful job.”—KIRKUS REVIEWS“Asimov, indefatigable explainer, takes up those incomprehensible, star-based explosions…his style…works.”—THE NEW YORK TIMES