I WONDER - What Are Gas Giants?

Gas giants are planets without solid surfaces, mainly composed of gases like hydrogen and helium. Our solar system's gas giants include Jupiter, Saturn, Uranus, and Neptune. Jupiter is the largest, with a mass over 300 times that of Earth, and can contain all other planets combined. Its atmosphere features bands and the Great Red Spot, a massive storm persisting for over 300 years. Jupiter also has faint rings and more than 75 moons, including Europa, which may harbor an ocean beneath its icy crust.

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