I’ve always been fascinated with theories that purport that the Earth is hollow. Never mind that these claims are contradicted by what scientific evidence tells us about the earth’s mass, makeup, and gravitational field. It’s fun to think about. Imagine a world within our world waiting to be explored. How cool would that be?
Of course there have been many theories advanced over the years. The one that tickles me the most, largely owing to the seriousness with which its adherents follow it today (even to the point of planning an expedition!), is the theory that our planet has an opening near each of the two poles. They estimate the holes to be 90 miles wide at its narrowest point, and ten times that wide at the outer and inner surfaces. The shell of the earth is assumed to be about 800 miles thick.
But wait, wouldn’t all the oceans drain into the center? No, the gravitational strength of the Earth’s shell is sufficient to keep the water in place, according to the theory. (in fact, Newton’s Shell Theorem contradicts this)
What we could expect to find in the center of the earth would be anyone’s guess. One variant of the theory proposes that the planet contains an inner sun, and therefore any manner of life might exist on the inner shell.
And by the way, other planets in our solar system may be hollow too! Proponents of the theory marshal various evidence to support this, such as this image of a storm on the south pole of saturn.
Here’s where the proposed south pole opening at Antarctica may be — in an area of low radar reflectivity.
As to the motives world governments might have in keeping this all a secret, I’m not sure what the explanation is. Probably the usual about wanting to keep the population ignorant because we’re not ready for the truth.
Isn’t it fascinating? The science fiction lover in me (a big part of me!) wishes it could be true, and you can see why conspiracy theories get the traction that they do.