Planetary science is the study of planets, moons, and other celestial bodies in our solar system and beyond. It involves understanding their composition, structure, atmospheres, and the processes that shape them. Researchers in this field use data from telescopes, spacecraft, and landers to gather information about these objects. This discipline also explores the formation and evolution of planetary systems, including the Earth, Mars, and Jupiter. By studying these bodies, scientists can learn about the history of our solar system and the potential for life on other planets.