Well, a stunning new stimulation – sorry, simulation – on YouTube transports you to the depths of Uranus from the comfort ... It was 4.5 billion years ago when gravity pulled nearby swirling ...

NASA has found something on Uranus and Neptune. The ice giants of the solar system have long been enigmas for science.

When combined with gravity data, the model computes the ocean's depth as well as the thickness of the overlying ice. Uranus, along with Neptune, is in a class of planets called ice giants.