Moons of the Solar System
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Orbiting Saturn is an orange moon called Titan. Its orangey color is due to the high concentration of nitrogen and other hydrocarbon elements in Titan's atmosphere. In 2005, the Huygens probe arrived at Titan. The probe landed on solid ground near a large liquid sea made of either liquid methane or ethane.
Fun Fact: Titan is the only moon in the solar system with a thick atmosphere.
Photo source: NASA