Book excerpt: Voyager 1 and Voyager 2 were launched in 1977. Since then they have traveled farther than any human object. Voyager 1 is now over 10 billion miles from the sun and is headed to the utmost boundary of our solar system. This book, originally published under the auspices of the Smithsonian Institution, tells the story of their journey through the solar system and beyond. The authors' unparalleled access to NASA archives and imagery make this authoritative work on the subject. The book includes an 8 pages of photographs and computer generated imagery and black and white photos throughout.