numerous solar systems have been observed, but it is challenging to determine the "most stable" solar system definitively. Stability in a solar system depends on several factors, including the arrangement and interactions between planets, the presence of other celestial bodies, and the gravitational forces at play.
One solar system that has been extensively studied for its stability is our own solar system, which consists of the Sun, eight planets, numerous moons, asteroids, and other small bodies. Despite occasional interactions and disturbances, the overall structure and stability of our solar system have endured for billions of years.
In recent years, astronomers have discovered exoplanetary systems—solar systems beyond our own. These systems come in various configurations, and their stability depends on their specific dynamics and characteristics. Some exoplanetary systems, such as the TRAPPIST-1 system, have been found to host multiple Earth-sized planets within their star's habitable zone, suggesting the potential for stability conducive to supporting life.
However, it is important to note that scientific observations and knowledge of exoplanetary systems are continually evolving, and new discoveries may alter our understanding of the stability of different solar systems. I recommend consulting updated astronomical resources or research papers to learn about any recent findings on stable solar systems beyond our own.