Saturn's Enceladus "Emerging as the Most Habitable Spot Beyond Earth in Solar System"

Saturn's Enceladus "Emerging as the Most Habitable Spot Beyond Earth in Solar System": "Saturn's icy moon Enceladus is emerging as the most habitable spot beyond Earth in the Solar System for life as we know it. "It has liquid water, organic carbon, nitrogen [in the form of ammonia], and an energy source," says Chris McKay, an astrobiologist at NASA's Ames Research Center in Moffett Field, California. Besides Earth, he says, "there is no other environment in the Solar System where we can make all those claims.""