The Gravitational Constant, G

Gravity plays a major role in the planetary formation and the development of the solar system. Gravity attraction is the essence of a power that holds and governs the universe; it makes the planets in the solar system revolve around the sun and the moons around their planets. The study of the mechanisms of planets formation in the solar system is a difficult problem made more so by the inability to construct planetary-scale models for laboratory study. However, understanding the nature of the matter comprising the Solar System is crucial for understanding the mechanism that generates planetary gravity. In this study, a brief history about the development of planetary gravity is presented. However, much work is still needed before the planetary gravity field processes are fully understood and full advantage be taken of the implications of this phenomena observations.