Jupiter’s Ganymede, the largest moon in the solar system, may be heating up: The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.

Jupiter’s Ganymede, the largest moon in the solar system, may be heating up: The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.

https://www.livescience.com/space/jupiter/the-solar-systems-largest-moon-may-be-heating-up-offering-clues-to-its-mysterious-origins