What makes planets rotate around the sun and revolve on their own orbit?
It’s easy to just say “gravity.” But what is gravity? According to Einstein’s theory of general relativity, space itself is effected by any massive object. This is known as the warping of “space-time.” To help visualize this, imagine putting a bowling ball in the middle of a trampoline. The trampoline creates a well in the middle. Similiary, in three dimensions, the Earth revolves in this “gravity well” created by the Sun. The reason for the planets revolving around the Sun goes back to the formation of the solar system. When the giant gas clouds that collapsed to form the sun (and eventually the planets), the system mainted its angular momentum created by the collapse due to gravity. So the large cloud spun slow at first, and then faster as it continued to collapse. The gas then cooled to form the planets, and the planets kept revolving around the Sun.
