astronomyblog: The two largest satellites of Jupiter: Ganymede and Callisto Credit: NASA/JPL/
astronomyblog: The two largest satellites of Jupiter: Ganymede and Callisto Credit: NASA/JPL/ -- source link
#jupiter#jupiter moons#coooooooool
astronomyblog: The two largest satellites of Jupiter: Ganymede and Callisto Credit: NASA/JPL/ -- source link