Ganymede has long looked like a contradiction in orbit. Jupiter’s largest moon is the only moon known to generate its own ...

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 ...

Ganymede may generate its magnetic field through a core that is still forming today, challenging long-held ideas about ...

For decades, planetary scientists have debated a fundamental question about the moon's early history: Did it once generate a powerful or a weak magnetic field? A new study suggests both options are ...

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...

Did the moon have a strong or weak magnetic field in its early history? We may now know the truth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...