A miniature extraterrestrial version of the Nile River has been spotted on the largest moon of Saturn by ESA’s Cassini spacecraft. This Cassini image shows ‘Nile River’ on Titan (NASA / JPL–Caltech / ASI) ESA researchers deduce that the river is filled with liquid hydrocarbons such as ethane and methane because it appears dark along its entire extent in the high-resolution radar image, indicating a smooth surface. The river valley...
