A study by Kevin J. Walsh, Alessandro Morbidelli, Sean N. Raymond, David P. O'Brien, and Avi M. Mandell suggests that Jupiter's early inward and then outward migration played a key role in shaping the inner solar system, particularly the asteroid belt. The research shows that Jupiter's migration to 1.5 AU and subsequent outward movement led to a planetesimal disk truncated at 1 AU, from which terrestrial planets formed. This process explains the compositional differences in the asteroid belt, with S-type asteroids (volatile-poor) in the inner belt and C-type (volatile-rich) in the outer. The study also highlights that Jupiter's migration reversed, which is crucial for the formation of the terrestrial planets and the current structure of the asteroid belt. The simulations indicate that Jupiter's migration caused the inner disk to grow, leading to the formation of Earth and Mars with a correct mass ratio. The migration also scattered material into the asteroid belt, with inner-belt bodies originating between 1–3 AU and outer-belt bodies beyond the giant planets. The study concludes that Jupiter's migration behavior is more similar to that of extra-solar planets than previously thought. The research also addresses the role of Jupiter's migration in the formation of the terrestrial planets and the asteroid belt. It shows that the migration of Jupiter and Saturn, along with their interactions, led to the current structure of the solar system. The study emphasizes the importance of Jupiter's inward and outward migration in shaping the inner solar system and the asteroid belt. The results are consistent with the observed composition and distribution of asteroids, and the study provides a framework for understanding the early evolution of the solar system. The findings suggest that the migration of Jupiter and Saturn is a key factor in the formation of the terrestrial planets and the structure of the asteroid belt.A study by Kevin J. Walsh, Alessandro Morbidelli, Sean N. Raymond, David P. O'Brien, and Avi M. Mandell suggests that Jupiter's early inward and then outward migration played a key role in shaping the inner solar system, particularly the asteroid belt. The research shows that Jupiter's migration to 1.5 AU and subsequent outward movement led to a planetesimal disk truncated at 1 AU, from which terrestrial planets formed. This process explains the compositional differences in the asteroid belt, with S-type asteroids (volatile-poor) in the inner belt and C-type (volatile-rich) in the outer. The study also highlights that Jupiter's migration reversed, which is crucial for the formation of the terrestrial planets and the current structure of the asteroid belt. The simulations indicate that Jupiter's migration caused the inner disk to grow, leading to the formation of Earth and Mars with a correct mass ratio. The migration also scattered material into the asteroid belt, with inner-belt bodies originating between 1–3 AU and outer-belt bodies beyond the giant planets. The study concludes that Jupiter's migration behavior is more similar to that of extra-solar planets than previously thought. The research also addresses the role of Jupiter's migration in the formation of the terrestrial planets and the asteroid belt. It shows that the migration of Jupiter and Saturn, along with their interactions, led to the current structure of the solar system. The study emphasizes the importance of Jupiter's inward and outward migration in shaping the inner solar system and the asteroid belt. The results are consistent with the observed composition and distribution of asteroids, and the study provides a framework for understanding the early evolution of the solar system. The findings suggest that the migration of Jupiter and Saturn is a key factor in the formation of the terrestrial planets and the structure of the asteroid belt.