Jupiter is Gigantic! It is bigger than any other planet in our solar system. It has rings and centuries-old storms. It has more than sixty moons, too-some with underground oceans! How do we know all this? Space probes from Earth have visited Jupiter. These robotic explorers have taught us a lot about the King of Planets. Learn about the amazing missions, the dedicated scientists who plan them, and more far-out facts about the fifth planet from the Sun. All the facts you need, and lots more, are included in this up-to-date book. Book jacket.