Gravitational interaction is the force that pulls objects toward each other due to their mass. This force is what keeps planets, like Earth, in orbit around the Sun and causes objects to fall to the ground. The strength of this interaction depends on the masses of the objects and the distance between them. Every object with mass experiences gravitational interaction, from tiny particles to massive celestial bodies. For example, the Moon is held in orbit around Earth by this force. Gravitational interaction is a fundamental aspect of physics, influencing everything from the motion of galaxies to the behavior of everyday objects.