Electrical activity in Jupiter is so strong that it pours billions of watts into Earth's own magnetic field every day. Jupiter's magnetic field could emanate from large liquid hydrogen core. Planetary magnetic fields are dynamic items - constantly changing, it is difficult to understand them without studying them over time. The Galileo orbiter carries six fields and particles instruments designed to study the many different processes in Jupiter's magnetosphere over the period of several years. If so, it would have been the first planetary moon known to have one.
Tidal forces cause surprising results on the solar system's largest moon.
Galileo revealed that Ganymede is first moon known to have its own magnetic field. A molten core of iron or iron sulfide generates Ganymede's magnetic field. Home Send feeback to Webmaster .