Gravitational forces are the attractive forces that pull objects toward one another, a fundamental interaction in the universe. This force is responsible for keeping planets in orbit around stars, such as the Earth around the Sun, and governs the motion of celestial bodies in space. The strength of gravitational forces depends on the masses of the objects involved and the distance between them. For example, the Moon exerts a gravitational pull on the Earth, which causes ocean tides. Understanding these forces is crucial for fields like astronomy and engineering, influencing everything from satellite launches to predicting planetary movements.