This is the revised hardcover edition of "Ringmakers of Saturn," commissioned for the 25th anniversary of the original book release. It features the same glossy color interior, but with a slightly revised cover, printed directly on the boards (rather than having a separate dust jacket).In these pages, Dr. Bergrun reveals that NASA's Voyager I and II space probes took photographs of an estimated 7000-mile-long elliptical (cigar-shaped) craft orbiting within the rings of 45 color plates of photographs taken during the Voyager 1 flight to Saturn in 1980, the reader of this remarkable book sees that one of the photographs shows that the A-ring is incomplete. The author sets out to explain this phenomenon in an understandable famous Cassini and Enke gaps also fit into the author's explanation. The micro-photography employed by the author answers many of the questions about Saturn asked since Galileo. The author further shows a relation to the well-defined crater on the earth's moon called "Mare Orientale," and to the 1908 Tunguska explosion in the U.S.S.R.CREDENTIALS: Dr. Norman Bergrun is an alumnus of Ames Research Laboratory, NACA (National Advisory Committee for Aeronautics) predecessor of Ames Research Center, NASA where he worked twelve years as a research scientist. At Ames, he pioneered the setting of design criteria for airplane thermal ice-prevention and the development of roll stability laws for airplanes, missiles, and rockets. He joined Lockheed Missile and Space Company (now Lockheed Martin), where he was manager of the planning and analysis of flight tests for the Navy's Polaris Underwater Launch Missile System.During his thirteen years at Lockheed, he also served as a senior scientist responsible for analysis of special space-satellite applications. An Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA), he is active as a leader in Congressional Visits Day events on Capitol Hill. Credited with numerous awards and citations, including the California Society of Professional Engineers Archimedes Engineering Achievement Award, he is listed in "Who's Who in America," "Who's Who in Science and Engineering," and other reference works. Read more