Actually, NASA is planning a mission to Titan. It would be a long time until we send humans there, but right now, NASA is working on a TSSM (Titan Saturn System Mission), which was stated for a 2020 launch. read more
Titan has no water, but some scientists wonder if life based on methane might live on Titan. Titan has a dense atmosphere of 95 percent nitrogen and 5 percent methane at 1.5 times the air pressure on Earth. read more