Saturn's moon Titan has lakes and rivers of liquid methane and ethane, making it the only body in our solar system besides Earth with stable surface liquids.
Sources
- https://science.nasa.gov/missions/cassini/cassini-reveals-surprises-with-titans-lakes/ (science.nasa.gov)
- https://science.nasa.gov/resource/titan-flyover (science.nasa.gov)
- https://earthsky.org/space/scientists-find-new-surprises-about-titans-lakes/ (earthsky.org)
- https://en.wikipedia.org/wiki/Lakes_and_rivers_of_Titan (en.wikipedia.org)
- https://en.wikipedia.org/wiki/List_of_largest_lakes_and_seas_in_the_Solar_System (en.wikipedia.org)
- https://www.space.com/extraordinary-solar-system-ocean-worlds (space.com)
- https://www.nature.com/articles/s41550-017-0244-8 (nature.com)
- https://arxiv.org/pdf/1910.13343 (arxiv.org)