Titan is the largest moon of Saturn and the second-largest moon in the solar system. It is unique due to its dense atmosphere, primarily composed of nitrogen, and features lakes and rivers of liquid methane and ethane on its surface. This intriguing moon has a surface temperature of about -290 degrees Fahrenheit (-179 degrees Celsius), making it one of the coldest places in the solar system. Titan's thick atmosphere and organic chemistry make it a subject of interest for scientists studying the potential for life beyond Earth.