The hollow earth theory has been around for a very long time and since I found the idea fascinating I have subsequently read a lot of material on the hollow earth theory. First of all there is a great number of different takes on the hollow earth theory and there must be dozens of quite different theories around the hollow earth which often do not have a lot in common. From Aliens to early humans and lost cultures, everything is being somehow connected to the hollow earth theory in the different versions of it which I have read.

Therefore to start off on the hollow earth theory here what I found most hollow earth theory descriptions have in common:

Number 1 is obviously – our planet is hollow

Instead of a liquid iron core there is a massive void on the inside. In fact not only a void but most hollow earth theories claim that there is a small star at the core of our planet.

The definition of a planet therefore is not as regular science sees it. A planet according to hollow earth thinking is a star with a very dense asteroid belt – similar to how we see the Cuiper Belt surrounding our entire solar system which is a solid sheet of ice and material packing in our whole solar system. So the hollow earth theory does not just claim our planet is different it claims all planets are different and often points to other planets like mars for confirmation of the hollow earth theory. Many opposing opinions to the hollow earth theory state that the earth could not be hollow for the changes in gravity this would cause to our surface – we would probably float off. However this hollow earth criticism is countered by the internal sun holding the planet together.

This way of hollow earth thinking of our planet as a moving and free floating collection of material around a central star obviously frightens many people who prefer to live on a relatively stable planet as we have defined it.

Number 2 – there are polar exits or entries to the inner earth

Very interesting indeed is that most or all hollow earth theories see holes at both ends of our hollow planet. The reasons for not clearly identifying these massive holes leading to the inside of the hollow earth are as varied as they are interesting. Modern science for one is either not capable of picking up these holes (for example by satellite photography) because they are constantly covered by a massive cloud caused by the thermal differences between the 2 colliding climatic zones between the inside of the hollow earth and the outside. As one would assume all areas of the inner earth illuminated by a central star would be both in eternal daylight and would not be any warmer or colder at the south or north pole of the hollow earth.

Hollow earth theorists point for example at mars where we can see the same cloud on the poles – in fact apparently the only constant cloud cover identifiable. There have been some pictures going around showing mars from an angle where you can see inside and catch a glimpse of the shining star on the inside. The other reason specified for not finding the polar entries to the hollow earth is political unwillingness or political conspiracy to keep the inner earth from us.

But why did the North and South pole expeditions never find these entries? The answer might surprise. These holes would be so massive and their sides so gently sloping that you should be able to walk into them and continue on the inside not loosing your grip due to the changing magnetic situation. I am no expert on magnetism so forgive my basic writing on this. However as you get close to the poles your compass becomes useless showing in all directions. This would make sense if you start to walk downwards rather than towards the pole. At some point the pole would end up straight up in the sky from where you are rather than further ahead. Reading some of the old polar expedition reports you also find how many polar expeditions ran into unexpected climatic changes towards a much warmer environment they did never expect in the polar regions. Maybe these guys went further than the "pole"?

Hollow Earth – Expanding Earth

Some, but not all hollow earth theories take on board the idea of an expanding earth explaining the drifting continent phenomenon in a totally new light.

Other hollow earth aspects

As mentioned at the start the hollow earth theories leave you with a host of ideas and myths surrounding human or other cultures living on the inside of our earth. Most pointedly for me however is the aspect that according to the hollow earth theory you and I – we are the extraterrestrials, the ones living on the outside.

Clear to me is the understanding that we do not know a lot about our planet and just as we thought our planet was flat a few hundred years ago our understanding of where we live will clearly evolve as radically as accepting the hollow earth theory for fact.