We can use Principle VI to deduce the nature of stars from current scientific research and what we know about the firmament, a rigid sphere made up of at least 12 layers of different crystal structures.
Deducing the Presence of the Firmament
Giant Mirrors in Space
A majority of the stars are crystalline firmament material (CFM) which reflect sunlight like giant mirrors in space. Giant 'mirror' planets just showed up in the popular science narrative (SciPop). Surprise, surprise.