Gentry Lee has been chief engineer on Project Galileo, director of science analysis and mission planning for NASA's Viking mission to Mars, and partner with Carl Sagan in the design, development, and implementation of the television series "Cosmos. He is the author of Bright Messengers and Double Full Moon Night and the co-author of Rama II, The Garden of Rama, and Rama Revealed. He lives in Texas, where he is at work on a new book.