NASA: Up to 4 of Uranus' moons could have water
NASA scientists concluded that four of Uranus' largest moons likely contain an ocean layer of water between its core and icy crust. The NASA study announced Thursday is the first to detail the evolution of the interior makeup and structure of all five large moons - Ariel, Umbriel, Titania, Oberon and Miranda. It suggests four of the moons hold oceans that could be miles deep aft