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Well, we know where to go sailboating after we leave Earth.....
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The liquid river, the first observed on another planetary body, stretches more than 200 miles (400 kilometers) from its headwaters to a large sea.
Using Cassini’s radar imaging instruments, NASA scientists were able to determine that the strange geological feature is likely a river as the dark, smooth surface within the meanders and channel suggest the presence of a liquid. The radar image, according to NASA, was taken on September 26, 2012, and it details Titan’s north polar region, where the river valley flows into Kraken Mare, a sea that is similar in size to the Caspian Sea and the Mediterranean Sea.