... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... Source of geysers on Saturn's moon may be underground water . Saturn's moon Enceladus may hide an underground reservoir of water. ... The team, including UCF Assistant Professor Joshua Colwell, found that the source of plumes may be vents on the moon that channel water vapor from a warm, probably liquid source to the surface at supersonic speeds. ... Only registered members of Astronomy.com are allowed to comment on this article. ...