Goodreads.com Abstract

From the time of the ancient Greeks through the present time, this historical overview of cosmology is told by one of the most famous and fascinating scientists today. In the ten years since its publication in 1988, Stephen Hawking's book has become a landmark volume in scientific writing, with more than nine million copies sold worldwide. That edition was on the cutting edge of what was then known about the nature of the universe. But the last decade has seen extraordinary advances in the technology of observing both the micro- and the macrocosmic worlds, confirming many of Professor Hawking's theoretical predictions. Eager to bring to his original text the new knowledge revealed by these observations, he has written a new introduction, updated the original chapters throughout, and added an entirely new chapter on the fascinating subject of wormholes and time travel.