What does mass do to the planets?

Mass exerts gravitational force, which is crucial for the formation and stability of planets. It governs the orbits of celestial bodies, keeping planets in their paths around stars and influencing their interactions with other objects in space. Additionally, a planet's mass affects its atmosphere, geological activity, and potential to retain water, all of which are essential for supporting life. Thus, mass plays a fundamental role in shaping the characteristics and fate of planets.