Asked by Jack Neville
Larger, complex and up to ten times the strength of Earth’s, Jupiter’s magnetic field is thought to arise from electrical currents emanating from a rapidly spinning, metallic hydrogen interior.
The planet’s field is almost a doughnut shape, containing gigantic versions of the Earth’s Van Allen Belts, which trap high-energy charged particles of mostly electrons and protons. There are also forces associated with the rapid rotation of Jupiter and because of these, along with the giant planet’s magnetic field, these particles are flattened into plasma sheets. Jupiter’s magnetic field rotates around once every nine hours.
Image Credit: NASA