Awesome The largest planet in our solar system, Jupiter ! The largest planet in our solar system, Jupiter is a giant ball of gas 300 times more massive than earth. It’s five times farther from the Sun than we are. A year on Jupiter is twelve times longer than ours, but a Jovian day is only ten hours long. Darting around it are dozens of moons – some with geysers, volcanoes, or ice. And like the other gas giants – Saturn, Neptune, and Uranus – Jupiter has rings. Like the Sun, Jupiter is made almo