Titan
				• Largest moon of Saturn • Has thick atmosphere – Pressure ~ 1 earth atmosphere – Mostly N2, some CH4 – Gas held because of low T • UV acting on CH4  smog – Ethane produced – Lakes? – Can “see” surface only in IR • Cassini dropped a probe in early 2005. • “Code of the Lifemaker” by James P. Hogan, good sf