Possible Plothole · 4:36am Monday
Celestia and Luna raise and lower the sun and moon, but any time we see that happen on screen, their horns light up as they use magic to do it...
The question I have is this...
How do the Sun and moon move across the sky during the day/night?
They aren't using magic 24/7 to move them, or their horns would be glowing.
If the sun and moon can move across the sky by themselves... why do Celestia and Luna need to raise and lower them, when they would naturally do that on their own...