This image shows a few of the many methane and/or ethane lakes found near the North Pole of Saturn's largest moon, Titan. This view, created with radar data from the Cassini spacecraft, has been artificially colorized; liquid methane/ethane is shown in blue, areas of "dry land" are brown. The lakes in this scene are about 50 km (30 miles) across.
Image courtesy of NASA/JPL/USGS.