Why does the earth orbit the sun?

The lighter object orbits the heavier one, and the Sun is, by far, the heaviest object in the solar system. read more

For example, the Earth completes one rotation about its axis about every 24 hours, but it completes one revolution around the Sun about every 365 days. Anyway, the basic reason why the planets revolve around, or orbit, the Sun, is that the gravity of the Sun keeps them in their orbits. read more

The centrifugal force on the Earth is just a result of the Earth moving in a curved path around the Sun. It doesn’t slow down because there isn’t any friction. After all, in space, there’s nothing to have friction with. read more