A new explanation suggests that Ganymede's dynamo, the churning metal core that creates a magnetic f...
SCIENCE
May 07, 2026
Ganymede Might Still Be Forming Its Metal Core Today
A new explanation suggests that Ganymede's dynamo, the churning metal core that creates a magnetic field, may arise from a slow growing core.
A new explanation suggests that Ganymede's dynamo, the churning metal core that creates a magnetic field, may arise from a slow growing core.
Author: Caltech
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