#Titan

Settling the Moons of Jupiter and Saturn: Europa, Titan, and Enceladus

The outer solar system's moons have long been science fiction staples, but they are now serious targets for exploration and, much further out, potential homes for humanity. Europa hides a liquid ocean. Titan has lakes of liquid methane and a thick atmosphere. Enceladus jets water vapor into space. Each is alien, cold, and potentially habitable.