But there are interesting ones that might be hiding amongst even thicker ice shells in the Uranian system. During that visit it captured the only “up close” images of Ariel, as well as many other Uranian moons, that we’ve ever had. However, there’s still no timeline for a mission to the Uranian system that has been funded. Learn More:PSI - Evidence of a past, deep ocean on Uranian moon, ArielC. Strom et al. - Constraining ocean and ice shell thickness on Ariel from surface geologic structures and stress mappingUT - Now Uranus' Moon Ariel Might Have an Ocean tooUT - Uranus' "Sprightly" Moon Ariel