Let's take this further...there is no sky folks.
We are in a drought, dead trees, dry rivers...The only force of nature here is the sun. It provides vast heat. We live on a river and yet the miracle of evaporation has yet to produce one cloud let alone a drop of rain.
There are no seasons, and no way of counting time by the sun. If it were truly a celestial body, and we a planet in orbit around it there would be some sense of these things. It's a torch of some kind, kept in place to give us comfort, and keep us from recognizing our captivity.
There is no rain, no tide, no moon, no movement of the sun viewable by the eye. That is not the natural sky, it is the lid on our cage.