The planet known as the Gas Giant is Jupiter. It is the largest planet in our solar system, comprising primarily hydrogen and helium, with a thick atmosphere that exhibits storms and high winds, including the famous Great Red Spot. Jupiter lacks a solid surface and has a complex system of rings and moons, with 79 known natural satellites, including the four largest known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Its massive size and dynamic atmosphere make Jupiter a subject of great interest in planetary science.