Titan is the largest moon of Saturn. It has an atomsphere like Earth and there is proof of liquids on the surface. The liquids on the surface is mostly methane and it follows the same water cycle as on Earth, although sicientiest also perdict hydrocarbon. It is about 80% bigger then Earth's moon. Titian is mostly comprised of water ice and rocky material. It was first discovered by Christiaan Huygens on March 25, 1655.
Titan's surface temprature is 94 K. The atomspheric methane creates a greenhouse effect like Earth and Venus that keeps the moon warmer. There is poissiblty of hydrocarbon seas and that was frist suggested by Voyager 1 and 2. When Cassini flew over it in 2004 they found the Ontario Lacus which is a lake. Ontario Lacus is shown in the frist picture, and it is only at the pole because of less direct sunlight. Titian has been studied alot due to its similaities to Earth and proven liquid possiblities.