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. The subject of the book is cosmology, the story of the universe. 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. One could account for what was observed equally well on the theory that the universe had existed forever or on the theory that it was set in motion at some. A Brief History of Time (1988) is a book written by the scientist and mathematician Stephen Hawking. But the intervening years have seen extraordinary advances in the technology of observing both the micro- and the macrocosmic worlds. Not really its easier to write a brief history of time all 14bn years and Harari also spends many pages on our present and possible future rather than our past. That edition was on the cutting edge of what was then known about the origins and nature of the universe.

In the ten years since its publication in 1988, Stephen Hawking's classic work has become a landmark volume in scientific writing, with more than nine million copies in forty languages sold worldwide.

A brief history of time pages