When Galileo met Ganymede

@article{Stevenson1996WhenGM,
  title={When Galileo met Ganymede},
  author={David J. Stevenson},
  journal={Nature},
  year={1996},
  volume={384},
  pages={511-512}
}
  • D. Stevenson
  • Published 12 December 1996
  • Physics, Geology, Education
  • Nature
Jupiter's satellite Ganymede has a magnetic field. Its cause could be an internal dynamo that was kick-started a billion years ago when the satellite was temporarily pushed into a more eccentric orbit. 

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THE Galileo spacecraft has now passed close to Jupiter's largest moon—Ganymede—on two occasions, the first at an altitude of 838 km, and the second at an altitude of just 264 km. Here we report the

Evidence for a magnetosphere at Ganymede from plasma-wave observations by the Galileo spacecraft

ON 27 June 1996 the Galileo spacecraft1,2 made the first of four planned close fly-bys of Ganymede, Jupiter's largest moon. Here we report measurements of plasma waves and radio emissions, over the

Gravitational constraints on the internal structure of Ganymede

BEFORE the arrival of the Galileo spacecraft in the jovian system, there was little information on the interior structure of Jupiter's largest moon, Ganymede. Its mean density (1,940 kg m−3),

A Magnetic Signature at Io: Initial Report from the Galileo Magnetometer

During the inbound pass of the Galileo spacecraft, the magnetometer acquired 1 minute averaged measurements of the magnetic field along the trajectory as the spacecraft flew by Io, and it seems plausible that Io, like Earth and Mercury, is a magnetized solid planet.

The magnetic field and internal structure of Ganymede

BEFORE the recent fly-bys of Ganymede by the Galileo spacecraft, viable models of the internal structure of Jupiter's largest moon ranged from a uniform mixture of rock and ice to a differentiated

Chaotic Motion of Europa and Ganymede and the Ganymede-Callisto Dichotomy

The tidal effects on Ganymede during this episode provide an explanation of the dichotomy between it and Callisto, which have similar bulk properties but very different geological histories.

Galileo Gravity Results and the Internal Structure of Io

Doppler data generated with the Galileo spacecraft's radio carrier wave were used to measure Io's external gravitational field, and the inescapable conclusion is that it has a large metallic core.

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