There is a book worth a peruse called “Who Built the Moon?” that sounds like it would be a Clown Show. But it’s not.

Years ago (separate from the book) the moon had a collision and NASA was watching and exclaimed that the Moon rang like a bell when it was hit. Hollow things ring. Not solid things.

The Moon’s location and size are a liiiiitle too “perfect” relative to the Earth’s size.

Do I think the Moon is hollow, fake, a robot, an observation tower…? The only thing I am sure of is that I do not know. But it’s fun to explore and think about.

EDIT: I just went back and read up a bit. Lots of theories on this, but one that sounds feasible is that the moon is solid, unlike the Earth (mantle + lava core), so the shock of having Apollo land on it caused "moonquakes" that reverbrated because there was no molten part of the core to absorb the shock. Sounds plausible. But, also, hollow things reverberate too.

There is a book worth a peruse called “Who Built the Moon?” that sounds like it would be a Clown Show. But it’s not.

Years ago (separate from the book) the moon had a collision and NASA was watching and exclaimed that the Moon rang like a bell when it was hit. Hollow things ring. Not solid things.

The Moon’s location and size are a liiiiitle too “perfect” relative to the Earth’s size.

Do I think the Moon is hollow, fake, a robot, an observation tower…? The only thing I am sure of is that I do not know. But it’s fun to explore and think about.