Cosmic Journeys: Saturn's Mysterious Moons (2009)
Some 900 million miles from the Sun in the outer regions of our Solar System orbiting the planet Saturn lies a mysterious world. Enceladus is enveloped in ice. Because nearly all of the sunlight that manages to hit its surface is reflected back into space, its one of the brightest objects in the solar system. It turns out that this distant outpost may harbor subsurface oceans and pre-conditions for life.