Saturn’s moon, Titan, is the only object in the Solar System other than Earth known to have liquid on its surface. While most of the hydrocarbon lakes are found around the poles, the dry regions near the equator contain signs of evaporated material left behind like rings on a bathtub that, when combined with geological features, suggest that the location of the liquids on the moon has shifted over time.

Researchers supported the NASA Astrobiology Institute (NAI) element of the Astrobiology Program have been looking at evaporites on Titan and what they can tell us about the history of liquid at the moon’s surface. Their work was published in the journal Icarus.