Enceladus is a small icy moon of Saturn. It is about 500 kilometres in diameter which is a tenth of that of Titan, the largest moon of Saturn. The surface of Enceladus consists of fresh, clean ice making it one of the most reflective bodies in the Sol System.
Enceladus was discovered by William Herschel on August 28, 1789, during the first use of his new telescope. Alongside Jupiter's moon, Europa, Enceladus was considered a candidate for extraterrestrial life although Europa took more of the spotlight.
Large plumes and cryovolcanoes shooting geyser-like jets of ice particles from the heavily cratered surface into space, can be found around this frigid ball of ice. The oceans consist of hydrothermal vents and sometimes tremors caused by the tectonic activity.
There is a danger that Enceladus might be destroyed by the tidal force of Saturn in 30 million years. Fortunately, other moons of Saturn, such as Mimas, Tethys, Dione or Rhea can also host the life of the moon.
Life was eventually discovered beneath the icy crust of Enceladus in 2132 during the Project Deepdive mission when the Enceladus Subsurface Ocean Explorer or ESOE for short, came across small eel-like creatures living in more calmer waters.
These lifeforms have been called Cheli (Greek for Eel) due to their resemblance to eels on Earth. While they don't display any signs of sapience, they do seem to be the most intelligent species on their world.
Silent Creepers: Predatory shark-like animals that mainly pray on Cheli. They are very stealthy, being able to hide in the dark environment and will ambush any unlucky Eeloid or other small creature that swims too close.
Tripods: Organisms similar to starfish but with three limbs instead of five. They are considered to be the Enceladus equivalent of Echinoderms.
Sealights: Small bioluminescent plants that can be found in clusters, causing a beautiful light display. They emit a light blue colour in their infancy and glow white in maturity.