In the ten years since its publications in 1988. Stephen Hawkings classic works 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. Eager to bring to his original text the new knowledge revealed by these observations, as well as his own 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.
