Diagram showing the theoretical interior of the ice giant planet Neptune. It probably looks very similar to the interior of Uranus. At the very centre

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Diagram showing the theoretical interior of the ice giant planet Neptune. It probably looks very similar to the interior of Uranus. At the very centre is a rocky and icy core, similar and size and mass to the Earth. This is encased in a thick inner mantle, a slushy mixture of various ices including methane, ammonia and water. Above this is the outer mantle, which is made up of a mixture of liquid hydrogen and other elements. And finally there is a thick atmosphere, composed chiefly of hydrogen, helium and methane.

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Size: 6000px × 3370px
Photo credit: © MARK GARLICK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ammonia, core, cutaway, diagram, gas, gaseous, giant, helium, hydrogen, ice, illustration, interior, landscape, mantle, methane, neptune, planet, water