About the Author

Dr Donald Goldsmith is the winner of, among many other awards, the 1990 Astronomical Society of the Pacific's Award for Lifetime Achievement in the popularization of astronomy. He won the Physics Science Writing Award in 1986 for Nemesis: The Deathstar and Other Theories of Mass Extinction. Robert Libbon is a veteran writer with a degree in European history. His survey of Instant European History was published in 1996 by Fawcett Books.