The largest moon of Saturn is called Titan. Titan is unique among moons due to its dense atmosphere, primarily composed of nitrogen, with traces of methane and hydrogen. This atmosphere is thicker than that of Earth, making Titan one of the few celestial bodies with substantial weather patterns, including the presence of liquid methane lakes and rivers on its surface. Titan's intriguing features have made it a subject of great interest for scientists studying astrobiology and planetary environments. Its similarities and differences compared to Earth provide valuable insight into the possibilities of life and geological processes beyond our planet.