Other editions of book Double Planet

Isaac Asimov discusses the many exciting secrets that science has uncovered about our own planet, including crucial data man is gathering about earth's mysterious center, and our primary space target. He provides vivid imagery of world's awaiting our first explorers, and accessible and enlightening explanations of "solar winds," "lunar rills" and "magnetopause." Vital to the inquiring mind, this is only a small sampling of the fascinating information you will encounter in the Double Planet!