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Planetary science is the scientific study of planets, moons, and other celestial bodies found within the solar system and beyond. This field encompasses a wide range of disciplines, including geology, physics, chemistry, biology, and astronomy, to investigate the composition, structure, formation, and evolution of these cosmic entities. By examining the similarities and differences among various planetary bodies, researchers can gain insights into the fundamental processes that shaped our own planet, Earth, and continue to influence its environment. As such, planetary science serves as a bridge between earth science and space science, providing a comprehensive understanding of the universe's celestial objects and their interconnectedness.