Xibalba

Xibalba was a small asteroid (around 1 sq. mile) that was created when Zeus ripped a piece out of Hell to drag Xbalanque and Hunahpu to Olympus. He later gave the asteroid as a gift to the human race, but put it in the wrong galaxy. It was forgotten after a few generations and simply drifted through the South Galaxy for a while until humans arrived in the South Galaxy after they made Earth uninhabitable. A few millennia after Aztlan was settled, the asteroid entered a collision course with Aztlan. However, the Lords of Xibalba, a group of priests who were tasked with preventing Xibalba from crashing into Aztlan, used Astral Rock to freeze it permanently where it was at the time (around halfway through Aztlan's atmosphere). Millennia after the Lords of Xibalba died, however, the evil warlord Tate arrived on Aztlan, stealing the souls of the Lords of Xibalba so he could force them to teach him the Song of Shadow. Once Tate brought them to Xibalba, their spell over Xibalba broke, causing the asteroid to resume its collision course with Aztlan. Though Weasel and his friends fought valiantly on Xibalba, they were forced to flee just before Xibalba collided with Aztlan, wiping out almost all life on the planet.