Rego Thomas (Argentina) – Two different subjects distinguish the heavens and the things that are out there. Οὐρανός and τ κεῖ in De caelo A 9 Category: Aristotle World Congress, Video Post navigation Concurrent Sessions: C2 – Philosophy of Nature: Astronomy & Cosmology – Couprie Dirk (Czech Republic)Concurrent Sessions: C2 – Philosophy of Nature: Astronomy & Cosmology – Donohue Brian (USA)