Lakes of Titan
Videos
Lakes of liquid ethane and methane exist on the surface of Titan, Saturn's largest moon. This was confirmed by the Cassini–Huygens space probe, as had been suspected since the 1980s. The large bodies of liquid are known as maria (seas) and the small ones as lacūs (lakes).
False-color, medium-resolution Cassini synthetic aperture radar mosaic of Titan's north polar region, showing hydrocarbon seas, lakes and tributary networks. Blue coloring indicates low radar reflectivity areas, caused by bodies of liquid ethane, methane and dissolved nitrogen. Kraken Mare, the largest sea on Titan, is at lower left. Ligeia Mare is the large body below the pole, and Punga Mare at half its size is just left of the pole. White areas have not been imaged.
Titan lakes (September 11, 2017)
Size comparison of Ligeia Mare with Lake Superior.
Vid Flumina, a 400-kilometer-long (250 mi) river emptying into Ligeia Mare (in lower right corner of top image).
Lake Ohrid
Videos
Lake Ohrid is a lake which straddles the mountainous border between the southwestern part of North Macedonia and eastern Albania. It is one of Europe's deepest and oldest lakes, with a unique aquatic ecosystem of worldwide importance, with more than 200 endemic species.
Lake Ohrid as seen from Ohrid, North Macedonia
Reconstruction of Bronze Age stilt houses on Lake Ohrid, near Peštani, North Macedonia
Ohrid sponge (Ochridaspongia rotunda) is endemic to Lake Ohrid
Church of St. John Kaneo and the Ohrid Lake