Orbital dynamics is a branch of celestial mechanics that studies the motion of objects in space, particularly celestial bodies such as planets, moons, and artificial satellites. It involves the analysis of the gravitational interactions between objects and the effects of these interactions on their orbits. Orbital dynamics also explores concepts such as orbital stability, resonances, and perturbations, which are fundamental to understanding the behavior of objects in space. This field is crucial for predicting the trajectories of space missions, designing satellite orbits, and studying the long-term evolution of planetary systems.