Physics (Hollow Planets) This subcategory is for discussing the physics of hollow planets. Some people may wonder, "How can a planet be hollow? Isn't it physically impossible?" Well, no, and here is where we discuss this. Yahoo Group (Old Posts) In this category, you will find posts from our original mailing list on Yahoo Groups. We have added these messages via a process of automatic importation, so there may be some issues. If you notice any missing messages or other issues, feel free to let us know in the support category. Inner Concave World This subcategory is for discussing the inner, concave portion of our hollow earth. This may include stories of voyages and life forms which allegedly exist there. Maps and discussions of the poles may also be relevant. Non-Earth This subcategory is for discussing the possibility of other planets or astronomical bodies being hollow, such Mars, the moon, the sun, etc. This may include discussion of their poles, photographs, etc. Distractions In today's society we can find many distractions that pull us away from that which is important or critical in our lives and personal growth. It is also true that powerful entities or organizations use this potential of distraction to keep many of us away from truth. Some of us believe this happens with UFOs and the idea of "extraterrestrials" vs "intraterrestrials", but it also happens with concepts like Flat-Earth keeping us from pointing True North towards the Hollow-Earth and that fact that ALL PLANETS are HOLLOW. Some of us have found the timeline in Google Trends from 2004 to present to be very, very interesting and telling: Cavern Worlds This subcategory is for discussing cavern worlds in context of Hollow Earth Theory. This may include folklore, mythology, UFOs & cryptids, so long as it ties into the idea of crustal subterranean worlds.