Even as a longtime fan, the occasional question still pops in my head from time to time. I have quite a few regarding Third Earth, so bare with me..and if you have definitive answers to them, don't hesitate to chime in. Was it ever made clear exactly why Third Earth is referenced as such? I mean, were there ever clues or dialogue I may have missed that explained the cataclysmic event(s) that lead to the Third Earth as we came to know it? Is Third Earth even our planet at all or is it a parallel version or some other planet they happened to deem as "Earth" because it was "the third one out"? Mumm-Ra once said, in the episode "The Unholy Alliance," that he knew of the Eye of Thundera's power for a thousand years, "from a time when this was still First Earth." So, putting Third Earth in the context of our planet...is First Earth like the Ice Age or time of the dinosaurs, Second Earth is the present (the time when humans inhabited), & Third Earth is the aftermath? If that's the case, since the time frame has only been a thousand years between Mumm-Ra's knowledge of the Eye of Thundera (First Earth) & the Thundercats and Mutants' arrival in "Exodus" (Third Earth)...Second Earth's time frame is a little blurry, is it not?