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Planetary magnetismPlanetary spacecraft have now probed the magnetic fields of all the terrestrial planets, the moon, Jupiter, and Saturn. These measurements reveal that dynamos are active in at least four of the planets, Mercury, the earth, Jupiter, and Saturn but that Venus and Mars appear to have at most only very weak planetary magnetic fields. The moon may have once possessed an internal dynamo, for the surface rocks are magnetized. The large satellites of the outer solar system are candidates for dynamo action in addition to the large planets themselves. Of these satellites the one most likely to generate its own internal magnetic field is Io.
Document ID
19800042587
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Russell, C. T.
(California, University Los Angeles, Calif., United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1980
Publication Information
Publication: Reviews of Geophysics and Space Physics
Volume: 18
Subject Category
Lunar And Planetary Exploration
Accession Number
80A26757
Funding Number(s)
CONTRACT_GRANT: NGL-05-007-004
Distribution Limits
Public
Copyright
Other

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