has slowly drifted far enough away from the Earth 500 million years has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth 500 million years has slowly drifted far enough away from the Earth has slowly drifted far enough away from the Earth