Other more complex chemicals in small quantities must be responsible for the orange color as seen from space. Recent ground-based radar observations have cast this into doubt, however. The landing site for the Huygens probe has been chosen in part by examining these images. T he observations by HST also indicate that Titan's rotation is in fact synchronous like most of Saturn's other moons. There are a lot of organic compounds and a potentially liquid environment on Titan.
Titan is one of the best possibilities .
In any case, it's interesting as a comparison with the early environment on Earth.