Magnetic Field

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Science  08 Mar 1963:
Vol. 139, Issue 3558, pp. 909-910
DOI: 10.1126/science.139.3558.909


Mariner II magnetometer data gave no indication of a Venusian magnetic field. This implies, by comparison with spacecraft measurements near Earth and with theoretical models, that the magnetic dipole moment of Venus is at most 1/10 to 1/20 that of the earth.