Ligeia Mare, shown here in a false-color image from the international Cassini mission, is the second largest known body of liquid on Saturn's moon Titan. It measures roughly 420 km x 350 km and its shorelines extend for over 3,000 km. It is filled with liquid hydrocarbons, such as ethane and methane.
The mosaic shown here is composed from synthetic aperture radar images from flybys between February 2006 and April 2007.
Photo credit: NASA/JPL-Caltech/ASI/Cornell