Ganymede Might Still Be Forming Its Metal Core Today
May 07, 2026
May 07, 2026
PASADENA, California, May 7 -- The California Institute of Technology posted the following news:
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Ganymede Might Still Be Forming Its Metal Core Today
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Jupiter's moon Ganymede is the largest moon in the solar system; at over 3,200 miles across, it is larger than the planet Mercury. It is also the only moon with its own intrinsic magnetic field, produced by a churning central core of electrically conductive metal called a dynamo. But . . .
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Ganymede Might Still Be Forming Its Metal Core Today
*
Jupiter's moon Ganymede is the largest moon in the solar system; at over 3,200 miles across, it is larger than the planet Mercury. It is also the only moon with its own intrinsic magnetic field, produced by a churning central core of electrically conductive metal called a dynamo. But . . .