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