Saturn holds a tiny secret.
Icy chasms on one of Saturn's most humble moons, hidden amid its glorious rings, have overtaken the sands of Mars and the stratosphere of Venus as the most intriguing potential hiding place for alien life in our solar system..........
http://www.usatoday.com/tech/science/space/2007-07-22-saturn-enceladus-life_N.htm?csp=34