Saison 1, épisode 5
Just the Right Distance From the Sun (EN)
Just the Right Distance From the Sun (FR)
Diffusé le 19/02/2016
Sean explains to the others that Earth is a "Goldilocks" planet because it's not too hot and not too cold. When Celery takes the kids to space, they observe how the other planets don't have the right attributes to support life, but Earth is "just right!"