Enceladus is the sixth-largest moon of Saturn. It is about 500 kilometers in diameter, about a tenth of that of Saturn's largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System. Cassini performed chemical analysis of Enceladus's plumes, finding evidence for hydrothermal activity, possibly driving complex chemistry. Research on Cassini data suggests that Enceladus's hydrothermal environment could be habitable to some of Earth's hydrothermal vents' microorganisms, and that plume-found methane could be produced by such organisms.
Early on in 20 years after people, the Cassini–Huygens, despite originally to depose in Saturn, crash landed to the surface of Enceladus. The episode was likely to hide the information on which moons where the Cassini-Huygen would crash until a specific timeline segment was reach.
That specific timeline segment was reach on 20,000,000 Years after people, where the episode have mention the surface of where the Cassini-Huygens would crash, and that is Enceladus. While any evidence of the Cassini-Huygens probe are long gone, the extremophiles bacteria that stowed away in the space probe is turning the landscape of Enceladus into the entire new ecosystem. Bacteria breeds into a new environment, transforming the entire Enceladus into a miniature earth.
- The transformation of Enceladus was briefly reused in another History show, Ancient Aliens but instead of Enceladus, it was recolor to Mars.