Uranus' Moons May Hold Hidden Oceans of Salty Water

New research suggests that the four largest moons of Uranus may have buried oceans of salty water below their frozen surfaces. The study explains how the persistent internal heat of the Uranian moons and a few chemicals could make them watery worlds despite their location in the frigid outer reaches of the solar system. The oceans on these Uranian moons have about 150 grams of salt for every liter of water, and finding oceans in the Uranian moons would increase the prospect that ocean worlds are frequent in our solar system and maybe in other solar systems.