The biggest moons of Uranus may have oceans beneath their icy shells

Uranus’s two biggest moons, Titania and Oberon, may have enough radioactive heat to maintain deep liquid oceans that could be detected by future spacecraft

Space 16 November 2021

Oberon

Oberon might have a liquid ocean below its frozen surface

Shutterstock / AleksandrMorrisovich

Uranus’s largest moons, Titania and Oberon, may be hiding buried oceans. Surface temperatures averaging around -200°C mean the water-rich worlds are covered in ice, but radioactive elements deep inside these moons may keep some of their interior water melted.

The smaller moons that orbit closer to Uranus get most of their internal warmth from tidal heating, in which the gravity of the planet stretches and flexes each moon’s core, creating friction and heat. Earlier research has suggested that …

Read more at New Scientist

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