Planetary Motion (Science Foundations)

thousands Of Years Ago, People Looked At The Sky In Wonder, Fascinated By The Motions Of A Few Wandering Stars. Nobody Understood Where These Wandering Objects-now Named Mercury, Venus, Mars, Jupiter, And Saturn - Came From, Why They Moved, Or What Drove Their Motions Through The Sky. Today, People Know These Objects Are Planets, But The Quest To Reach This Understanding Took Thousands Of Years, And The Consequences Were Profound. Scientists Johannes Kepler, Edmund Halley, Isaac Newton, And Others Discovered The Laws Of Gravity And Planetary Motion And Used Them To Explain How The Solar System Works. In Planetary Motion, Learn How Scientists Have Found New Planets Outside The Solar System And Continue Their Search For Planets Similar To Earth. science Foundations Explores The Many Methods Scientists Use To Understand Our World And The Universe Beyond. The Titles In This Series Cover Many Important Topics Central To The Study Of Earth, Physical, Chemical, And Biological Sciences, While Presenting These Subjects In An Easy-to-read, Functional Style. From The Tiniest Quantum Particle To The Expansion Of The Universe, The Books In The Science Foundations Series Provide Excellent Supplements To An Extensive Science Curriculum. Contents......Page 6 1: A Billion-Mile Hole-in-One......Page 8 2: The First Astronomers......Page 23 3: A Better Set of Rules......Page 38 4: The Laws of Planetary Motion......Page 50 5: More Than Just Planets......Page 71 6: Other Solar Systems......Page 81 7: The Rest of the Universe......Page 93 Glossary......Page 105 Bibliography......Page 109 Further Resources......Page 110 Picture Credits......Page 112 Index......Page 113 About the Authors......Page 118 Thousands of years ago, people fascinated by the motions of a few wandering 'stars'. Today, people know these objects are planets, but the quest to reach this understanding took thousands of years. This title helps to learn how scientists have found new planets outside the solar system, and continue their search for planets like Earth. In "Planetary Motion," learn how scientists have found new planets outside the solar system, and continue their search for planets like Earth