The seas were turned up by Cassini’s radar instrument during a recent flyby past Titan’s north pole. The largest of these features measures about 100,000 square kilometres (39,000 square miles). That’s a surface area larger than Lake Superior here on Earth.
Since Cassini used its radar instruments to image the seas, scientists aren’t completely positive that’s what they’re looking at. In rader, liquids appear as dark patches, indicating smooth surfaces. Another flyby is planned for May, where Cassini will fly directly over these dark patches and get a better look.
Original Source: NASA/JPL News Release
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