Gas giant planets are a type of planet that are primarily composed of gases, such as hydrogen and helium, and have a relatively low density compared to terrestrial planets. These planets are typically much larger in size than Earth and have strong gravitational fields. Gas giants are common in our solar system, with Jupiter and Saturn being the largest examples. These planets do not have solid surfaces like terrestrial planets, but instead have thick atmospheres with swirling clouds and powerful weather systems. Gas giant planets are thought to form farther away from their parent star than terrestrial planets, where the abundance of gases allows for their massive size and low density. Studying gas giant planets can provide insights into planetary formation, atmosphere dynamics, and the potential for habitability in other solar systems.