
Titan is the only world besides Earth known to have rivers, lakes, seas, clouds and rain — except its “water” is methane and ethane, flowing across a surface frozen to minus 179 degrees Celsius. And in June 2026, scientists held the first Humans to Titan Summit, beginning to map what a crewed mission to Saturn’s largest moon would actually require.
Titan, the largest moon of Saturn, is the only world besides Earth known to have rivers, lakes, seas, clouds and rain.














