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Evidence mounts for liquid interior of a Saturn moon

Cassini researchers find additional support in the moon's plumes

Editor’s Note: A paper in the July 23 Nature reports on evidence for ammonia in the plume of water vapor and ice emanating from Saturn’s moon Enceladus, along with the probable detection of argon-40, raising the chances that Enceladus has (or had in the recent past) liquid water in its interior. Science News reported that finding in this story, originally posted in May.

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