Aristotle's scheme added the heavenly aether, the divine substance of the heavenly spheres, stars and planets.
ˈæɹɪstˌɑːɾəlz skˈiːm ˈædᵻd ðə hˈɛvənli ˈiːθə, ðə dᵻvˈaɪn sˈʌbstəns ʌvðə hˈɛvənli sfˈɪɹz, stˈɑːɹz ænd plˈænɪts.