This is a schematic of the interior of Saturn.
The Liquid Hydrogen Layer
The first liquid layer inside Saturn, right under the atmosphere, is a layer of liquid hydrogen!.
The air becomes thicker and thicker, like a dense fog, with more and more liquid drops, until the hydrogen from the air completely changes to a liquid. Once the hydrogen is a liquid, it then acts like the ocean and forms currents which carry heat from the inside to the outside of Saturn.
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