Study: Key element essential for life found on Saturn's icy moon

CNN's John Vause speaks with Christopher Glein, co-author of a new study in the journal Nature that says the last of the six life-sustaining elements was found on one of Saturn's many moons, Enceladus. Researchers were already aware of the existence of carbon, hydrogen, nitrogen, oxygen, and sulfur on Enceladus but phosphorus was still missing from the equation until now. #cnn #news