This alien ocean is the first known to have all elements crucial for life

Plumes of water ice and vapor spray from the south polar region of Saturn's moon Enceladus, as seen by NASA's Cassini spacecraft.(NASA/AP)Saturn's moon Enceladus has enticed scientists for years with its plumes fizzing their way up from an ocean beneath a thick crust of ice.Now there's a new element to the story, literally: That cold, dark oceanappears to contain a form of phosphorus, an essential ingredient forlife as we know it.

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