This radar image, obtained by Cassini's radar instrument during a near-polar flyby on Feb. 22, 2007, shows a big island smack in the middle of one of the larger lakes imaged on Saturn's moon Titan.

This radar image, obtained by Cassini's radar instrument during a near-polar flyby on Feb. 22, 2007, shows a big island smack in the middle of one of the larger lakes imaged on Saturn's moon Titan.

Sea Hunt, Cassini Style

Cassini successfully completed a flyby of Titan on April 10, 2007. The spacecraft flew over new parts of familiar terrain on the Saturnian moon-its north polar region. In images from this radar pass, more lakes or seas are expected to be visible.

Among the new parts of familiar terrain imaged was the other side boundary of the 'black sea,' which could tell scientists more about its size. Additionally, the radar team aligned this pass slightly southward so that it will line up with a future altimetry flyby planned for May 12.