While mainstream science attributes lunar characteristics to the "Giant Impact Hypothesis" (where a Mars-sized object hit Earth), Wilson’s work thrives in the realm of speculative science. It challenges the reader to look at the Moon not as a dead rock, but as a potential piece of ancient technology.
The Moon’s density is significantly lower than Earth’s, leading Wilson to argue that its interior must be cavernous rather than solid rock. Our-mysterious-spaceship-moon-by-don-wilson-pdf
When NASA crashed lunar modules onto the surface during the Apollo missions, the Moon reportedly "rang like a bell" for hours, suggesting a hollow or metallic interior. suggesting a hollow or metallic interior.