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Identification of a Dynamic Atmosphere at Enceladus with the Cassini Magnetometer

Science  10 Mar 2006:
Vol. 311, Issue 5766, pp. 1406-1409
DOI: 10.1126/science.1120985

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Abstract

The Cassini magnetometer has detected the interaction of the magnetospheric plasma of Saturn with an atmospheric plume at the icy moon Enceladus. This unanticipated finding, made on a distant flyby, was subsequently confirmed during two follow-on flybys, one very close to Enceladus. The magnetometer data are consistent with local outgassing activity via a plume from the surface of the moon near its south pole, as confirmed by other Cassini instruments.

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