Solar system evolution is the study of how our solar system formed and changed over billions of years. Researchers in this field investigate the processes that led to the formation of the sun, planets, moons, and other celestial bodies within our solar system. They also study how these objects have evolved and changed over time, including the impacts of collisions, the formation of planetary atmospheres, and the development of organic molecules. By studying solar system evolution, scientists gain insights into the history of our own planet and how it came to be as it is today.