NASA, ESA, CSA, STScI; J. DePasquale, A. Koekemoer, A. Pagan (STScI) (CC BY 4.0)
The largest moon in the solar system, bigger than the planet Mercury, and the only moon with its own magnetic field.
Ganymede is larger than Mercury, though only about half as massive. It is the only moon known to have its own magnetic field.
Like Europa, it is thought to hide a salty ocean between layers of ice. ESA’s JUICE mission, launched in 2023, will orbit it in the 2030s.
Ebe data
Ngwaọrụ na agụụ na-eji móòdù akọwapụtara maka ịmụ naanị. Ha gaghị eji ha maka nlegharị anya, mmepe ọrụ mọọbụ nhọrọ ọbụla nke ọrụ. Saịtịapụl bụ n'efu ma ọ bụghị n'aka. Gụọ n'ihe ọmụmụ ihe ndị ahụ