Gaseous bodies are celestial objects primarily composed of gases, such as hydrogen and helium. They are often found in the universe as part of larger structures like stars, planets, and nebulae. Examples of gaseous bodies include Jupiter, the largest planet in our solar system, and the Sun, which is a massive ball of gas undergoing nuclear fusion. These bodies can vary in size and temperature, influencing their behavior and characteristics. Gaseous bodies can also form clouds of gas and dust in space, known as nebulae, which are often the birthplaces of new stars. Understanding gaseous bodies helps astronomers learn more about the universe's formation and evolution.