Horizon: Saturn: Lord of the Rings

Fascinating coverage of the Cassini-Huygens spacecraft's mission to Saturn, which has given us stunning images of the solar system's most bewitching planet. The hope now is that by exploring Saturn's mysterious moon, Titan, we will find answers to how life first began. It is a mysterious primordial world of green sky, orange clouds and raindrops made of methane but may hold vital clues to the origin of life.