In summary, there are several theories that attempt to explain the formation and evolution of the Solar System, including the Nebular Hypothesis, the Capture Theory, the Disk Instability Model, and the Grand Tack Hypothesis. While the Nebular Hypothesis remains the most widely accepted theory, the other models offer alternative explanations and help to broaden our understanding of the processes that shape planetary systems in the universe.
The Nebular Hypothesis proposes that the Solar System formed from a cloud of gas and dust that collapsed under its own gravity, while the Capture Theory suggests that some objects in the Solar System may have been captured by the gravity of the planets rather than formed from the solar nebula. The Disk Instability Model proposes that planets can form directly from the instability of the disk of gas and dust surrounding the young star, and the Grand Tack Hypothesis suggests that Jupiter migrated towards and then away from the Sun, disrupting the formation of the inner planets in the process.
Understanding the formation and evolution of the Solar System is crucial to our understanding of the universe as a whole, and ongoing research and observations will continue to refine our understanding of these processes. The variety of theories highlights the complexity of these processes and the need for continued exploration and discovery in the field of planetary science