- from Planets
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Jupiter is the biggest planet in the solar system.
It’s named after Jove, the leader of the Roman gods. It is 11 times wider than Earth. Thirteen hundred Earths could fit inside it! Jupiter does not contain solid rock like Earth does. Instead, it’s a big ball of hydrogen and helium under piles of clouds.
Jupiter’s atmosphere is thousands of miles deep. We can see the tops of its clouds from Earth. They look like a colorful Easter egg. Swirling storms cause the patterns. Jupiter has a rocky core at its center. Billions of years ago, it pulled in hydrogen gas to build up a huge planet. At least 63 moons orbit Jupiter, and it might have more.