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Lakes at Titan's south pole Cassini's RADAR instrument acquired its first swath across the southern polar region on 2 October 2007, reaching to within 18 degrees of the south pole. Within the swath are small, irregularly shaped, radar-dark blobs much like the features that are now being interpreted as lakes in the northern regions, as well as many other features that share similarities with ones seen in the northern polar region. The similarity between the poles suggests that the surface features in the polar region are driven by Titan's climate. NASA / JPL-Caltech