Add Yahoo as a preferred source to see more of our stories on Google. Jupiter's giant moon Ganymede is the only known moon to have its own magnetic field — and it may be heating up in a process "not ...

When people think about moons, they usually picture small rocky companions circling much larger planets. Ganymede does not fit that picture. It travels around Jupiter, yet it is larger than Mercury, ...

Jupiter's moon Ganymede is larger than the planet Mercury, hides a massive ocean beneath its ice, and is the only moon in the solar system known to generate its own magnetic field. For decades, ...

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic field. Reading time 3 minutes Jupiter, the biggest planet in our solar ...

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Southwest Research Institute (SwRI) scientists used simulations to understand the role disruptive impacts play on icy moons ...

Jupiter's giant moon Ganymede is the only known moon to have its own magnetic field — and it may be heating up in a process "not yet observed anywhere else," new research suggests. One of the four ...