Jupiter is the largest planet in our solar system. It is the fifth planet from the sun. It has four planet-sized moons and many smaller moons; 63 in total. Jupiter is 778,412,020km from the Sun. Its radius is 71,492km.
A juvenile is a creature that is older than a baby, but not grown up into an adult yet. Juvenile birds often look scruffy as they are losing their downy baby feathers and growing their adult plumage.