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Introduction by Carl Sagan. Hawking's classic A Brief History of Time expertly guides students to the supreme questions of the nature of physics, time and the universe: Was there a beginning of time? Will there be an end? Is the universe infinite? Is it possible to unite all branches of physics? In the twelve years since its publication in 1988, this classic work has become a landmark volume in scientific writing, with more than nine million copies in forty languages sold worldwide. That edition was on the cutting edge of what was then known about the origins and nature of the universe. But the intervening years have seen extraordinary advances in the technology of observing both the micro- and the macrocosmic worlds. These observations have confirmed many of Professor Hawking's theoretical predictions in the first edition of his book, including the recent discoveries of the Cosmic Background Explorer satellite (COBE), which probed back in time to within 300,000 years of the universe's beginning and revealed wrinkles in the fabric of space-time that he had projected. Eager to bring to his original text the new knowledge revealed by these observations, as well as his own recent research, Professor Hawking has prepared a new introduction to the book, written an entirely new chapter on wormholes and time travel, and updated the chapters throughout.
TABLE OF CONTENTS
Acknowledgments * Introduction by Carl Sagan * Our Picture of the Universe * Space and Time * The Expanding Universe * The Uncertainty Principle * Elementary Particles and the Forces of Nature * Black Holes * Black Holes Ain’t So Black * The Origin and Fate of the Universe * The Arrow of Time * The Unification of Physics * Conclusion * Albert Einstein * Galileo Galilei * Isaac Newton * Glossary * Index