Fact Sheet
Paying a Call
Titan, the largest moon of Saturn, passes in front of the giant planet in this image from the Cassini spacecraft. Saturn's rings, seen edge-on by the orbiter, form a dark line just above Titan. Cassini is scheduled to pass about 600 miles (950 km) from Titan on December 4. Titan has a thick atmosphere that is topped by an orange smog-like haze of organic chemicals. Cassini's instruments can look through the haze to see the moon's surface, which includes lakes of liquid methane and giant dunes of grains of frozen methane. [NASA/JPL/SSI]
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