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| Acknowledgments | |
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| Preface | |
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| Cosmology Becomes Data-driven Science | |
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| Outline of the Journey We Will Take | |
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| Prologue From Myth to Reality | |
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| Astronomy: The Endless Frontier | |
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| Charting and Modeling the Heavens | |
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| Copernicus: "The Last of the Greek Cosmologists" | |
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| Galileo: A New Approach to Mechanics and Cosmology | |
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| The Impact of Copernicus: Kepler's Laws | |
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| Isaac Newton and Gravity | |
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| William Herschel Discovers the Universe | |
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| Understanding the Universe Becomes a New Kind of Science | |
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| Einstein's Toolkit, and How to Use It | |
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| Overconfidence among the Cognoscenti at the Dawn of the Twentieth Century | |
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| Revolution in Physics: The Inception of Quantum Theory and Relativity | |
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| Special Relativity | |
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| General Relativity | |
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| General Relativity Is Tested, Passes the Test, and Is a Sensation | |
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| Cosmological Solutions to Einstein's Equations | |
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| The Realm of the Nebulae | |
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| New Instruments in a Better Climate Unveil a New World | |
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| A Universe of Galaxies Is Confirmed | |
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| A Cosmological Model to Fit the New Data: Enter, Georges Lema�tre | |
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| Physical Cosmology and the Expanding Universe | |
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| Lema�tre's Synthesis Model Foretells the Contribution of Dark Energy | |
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| Hubble's Achievements | |
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| Big Science to Attack the Big Problem | |
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| The Steady State Model Universe and the Big Bang | |
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| Let's Do Cosmology! | |
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| The Big Bang: A Starting Point That Cannot Be Escaped | |
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| Observational Cosmology, the Biggest Puzzle to Be Solved with the Biggest Telescope | |
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| The Grand Project Was Initially Too Difficult | |
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| Discovering the Big Bang | |
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| Did Our Universe Have an Explosive Birth? | |
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| What Makes the Stars Shine? | |
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| Nuclear Astrophysics Moves to the Cosmos | |
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| The Fireball in Which the First Chemical Elements Were Made | |
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| Direct Radio Observations of the Big Bang Fireball | |
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| Understanding the Big Bang | |
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| The Origin of Structure in the Universe | |
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| "In the Beginning"-Why an Explanation Is Needed | |
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| Structure within the Expanding Universe | |
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| The Elusive Standard Candle: Beatrice Tinsley Changes the Game | |
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| Real Cosmic Structure Found and Cataloged by Fritz Zwicky | |
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| Understanding the Origin of Structure Becomes Serious Science | |
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| Cosmic Inflation | |
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| The Seeds of Cosmic Structure Are Discovered | |
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| Closing the Loop: How Do Seeds Grow to Galaxies? | |
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| Dark Matter-or Fritz Zwicky's Greatest Invention | |
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| How the Earth Was Weighed | |
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| Finding the Mass of the Andromeda Galaxy | |
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| Zwicky Finds Dark Matter in Clusters of Galaxies in the 1930s | |
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| The Rediscovery of Dark Matter in the 1970s | |
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| Rotation Curves Confirm the Case for Dark Matter | |
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| More Recent Multiple Lines of Evidence for Dark Matter | |
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| Dark Energy-or Einstein's Greatest Blunder | |
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| A Curious Situation | |
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| Will Gravity Lead to a Collapse of the Solar System? | |
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| Expected and Unexpected Motions of Thrown Stones and Hubble's Universe | |
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| The Invention of the Cosmological Constant or Dark Energy: 1915 | |
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| The Revival of Dark Energy in the 1970s | |
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| New Arguments and New Evidence-Dark Energy Confirmed in the 1990s | |
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| Dark Energy Fills the Gap, Allowing the Flat, "Just Right" Universe | |
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| The Modern Paradigm and the Limits of Our Knowledge | |
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| We Have Come a Long Way | |
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| The Matter and Energy Content of the Universe | |
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| The Global Cosmological Solution and the Cosmic Triangle | |
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| In the Beginning | |
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| Structure in the Universe | |
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| The Supercomputer Approach | |
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| The Frontier: Major Mysteries That Remain | |
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| Dark Matter | |
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| Dark Energy | |
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| Inflation | |
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| Giant Black Holes | |
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| Fine-Tuning | |
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| Summing Up | |
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| Appendixes | |
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| Glossary | |
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| Bibliography | |
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| Index | |