When it comes to Voltron, 5 is a magic number. 5 Pilots in 5 Lions come together to form the mighty Defender of the Universe. As we find out from watching “Five Forged”, there are 5 Planets that each contributed to the creation of Voltron. Pidge’s Planet, Balto, provided the technical designs for the big guy, forming 5 Lions into 1 giant robot. Ariel was where Voltron was forged, and some of the main elements of Voltron are found within the mines of Ariel. Arus is where the Lions call home, and is where Voltron developed its strong sense of Unity. Earth provided the human element, whereas Voltron would not need pilots without it. There are still questions that need to be answered about the 5th Planet. As it turns out, the Voltron Force has to pass through 5 Trials, each coming from a different Planet involved in the creation of Voltron, to prove they are worthy to find what they seek (fixing the injured Black Lion).