The Snub Nubbins are a bit different, we can expect that, after all they do come from a planet so far away, an area in space called the Cosmos. Just like humans they have a planet to live on that is no different to our own earth, or so they thought.
Billions of years beyond human's existence on earth evolve the Snub Nubbins, Larco the Wizard discovers the far away planet Plop Plop is in fact Snub Nubbin from ancient times when it was called Earth. Larco travels back in time down the dark hole of rainbows to expand his knowledge and continue his quest of discovery.