- from Planets
Jupiter is the largest planet in the solar system.
It’s named after Jove, the leader of the Roman gods. It is 11 times larger in diameter than Earth. Thirteen hundred Earths could fit inside it! Jupiter does not contain solid rock like Earth does, but instead is a big ball of hydrogen and helium under layers of clouds.
Jupiter’s atmosphere is thousands of miles deep. We can see the tops of the clouds from Earth. They look like an Easter egg with colorful patterns, caused by swirling storms. At the center of Jupiter is a rocky core. Billions of years ago, it captured hydrogen gas to build up a gigantic planet. At least 63 moons whirl around Jupiter, and it might have more.