The motion of planets in the solar system is a phenomenon which remained something of a curiosity among scientists since antiquity. For example: Why do the planets closer to the sun tend to revolve faster round the sun, but rotate slowly on their various axes? Also, why do the planets that are far away from the sun tend to rotate faster on their various axes, but revolve slowly round the sun? Why does weight varies across the planets? Why do celestial bodies work with different clocks? Where is the origin of gravitational force? Where can we find gravitational field? You may think of Newton’s view of gravitation, but you would not find complete answer to the questions at hand. You may also think of Einstein’s view of gravitation, but the answer would not be different from the one above. Hence, there is need to research further to find accurate answers to some of the above questions. This guide provides answers to some of these questions using an approach that is direct and standard.