Cassini to Confirm if 'Caspian Sea' is Liquid-Filled
For Cassini's next flyby of Titan on May 12, 2007, the radar instrument
was originally pointing north of where it is now pointed. Due to the
discovery of probable large seas on Titan, Cassini's quick-thinking
team repointed the radar instrument south, so it could fly over a
large, expansive dark area dubbed the "Caspian Sea." This flyby will
confirm whether it is liquid-filled. This area on Titan's north pole
stretches 1,000 kilometers (620 miles) and is only slightly smaller
than Earth's Caspian Sea.
The presence of seas on Titan reinforces the idea that Titan's surface must be re-supplying methane to its atmosphere.
More: NASA Cassini-Huygens Mission - Titan Flyby, May 12, 2007