I’m seeing a lot of people get confused about the fake sky and how it’s presented. If Sartalogi and Dottore have control over space, they could create portals, which would explain the weird presentation of the fake sky—why it appears so close, yet is actually very far away.
The red sky could simply be scattered remnants of the Eternal Moon that formed a semi-asteroid belt around the planet’s orbit. When there’s heavy dust in the atmosphere, sunlight reflects more red wavelengths, which could explain the red coloration—possibly amplified by the moon’s power.
About Fake sky