Gravitational interactions refer to the forces of attraction between objects with mass, as described by Newton's law of universal gravitation. This research area includes the study of the gravitational interactions between celestial bodies such as planets, stars, and galaxies. It also involves the investigation of phenomena such as gravitational waves, black holes, and dark matter, which play a crucial role in shaping the structure and dynamics of the universe. Researchers in this field use mathematical models, observational data, and computational simulations to better understand the fundamental principles of gravitation and its impact on the cosmos.