Saturn’s moon Enceladus is the source of Saturn’s E-ring, confirms research published today.
Writing in the journal Science, scientists show how a plume of icy water vapour bursting out of the South Pole of Enceladus replenishes the water particles that make up the E-ring and creates a dynamic water-based atmosphere around the small moon. The E-ring is Saturn’s outermost ring and is composed of microscopic particles. It is very diffuse and stretches between the orbit of two of Saturn’s moons, Mimas and Titan.
Scientists discovered the dynamic atmosphere during three separate fly-bys of Enceladus by the Cassini spacecraft in February, March and July 2005. Cassini Huygens is a joint NASA/ESA mission to study the Saturnian system.
Julia Maddock | alfa
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