Saturn's Moon Titan: Prebiotic Laboratory by Harry Bortman    In this second and final part of the interview, Lunine explains how Huygens may help scientists understand the origin of life on Earth, even if it doesn't detect life on Titan.    Astrobiology Magazine -- Titan is the only moon in our solar system with an atmosphere, and it is the organic chemistry that has been detected in that atmosphere that has sparked the imagination of planetary scientists like Lunine...