Titan (moon)

Titan is the largest moon of Saturn and is notable for possessing a thick, nitrogen-rich atmosphere, which, combined with its surface temperature, creates an environment where liquid hydrocarbons can exist. The moon's surface features vast lakes and rivers composed primarily of liquid methane and ethane. These hydrocarbon bodies are distinct from any water-based liquid known on terrestrial bodies, defining the unique chemistry of the world. Furthermore, the body possesses a complex geological history, evidenced by cryovolcanic activity and various terrains, making it a primary subject for studying the potential habitability of other outer solar system worlds.