It is the only place in the solar system apart from Earth that has stable liquid on its surface, resulting in stream systems, erosion, and lakes that significantly shape its geography. The surface of Titan is extremely varied, with bodies of liquid hydrocarbons, mountains, valleys, and chasms.
Mountains and surface features on Titan from 2 km altitude. The density of the air is about 4.5 times that of Earth sea level, moderating shifts in temperature over time and from one locale to another.
Insulation and heat generation and management would be significant concerns. This means Titan's surface is extremely cold, nearly −180 ☌, cold enough for methane to remain liquid on its surface. Without significant advances in spacecraft propulsion, this would mean an exceedingly long journey to and from any potential colony, greatly complicating any efforts.īecause of its distance from the Sun, Titan receives about 1% as much sunlight as Earth. Before sunlight reaches the surface, about 90% has been absorbed by the thick atmosphere, leaving only 0.1% of the amount of light Earth receives. Travel times to Saturn have ranged from a little over 4 years to nearly 7 years, depending on the orbital relationship to Earth at the time of launch. Titan is the sixth moon of the planet Saturn, itself the sixth planet from the Sun.
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