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How Jupiter’s Moon Ganymede Melted Its Core

MAY 19, 2026

A new model explains how Ganymede got its molten core — which in turn has given Jupiter’s largest moon its magnetic field.

A new model explains how Ganymede got its molten core — which in turn has given Jupiter’s largest moon its magnetic field.

The post How Jupiter’s Moon Ganymede Melted Its Core appeared first on Sky & Telescope .