Editing Giant planet (section)

===Ice giants===
{{Main article|Ice giant}}
[[File:Hubble's Decade-Long Views of the Outer Solar System Planets (2024-010).png|thumb|Composite image of Hubble photos showing four giant planets of the Solar System, tracking seasonal changes during ten years of observations (2014-2024)]]
Ice giants have distinctly different interior compositions from gas giants. The Solar System's ice giants, [[Uranus]] and [[Neptune]], have a hydrogen-rich atmosphere that extends from the cloud tops down to about 80% (Uranus) or 85% (Neptune) of their radius. Below this, they are predominantly "icy", i.e. consisting mostly of water, methane, and ammonia. There is also some rock and gas, but various proportions of ice–rock–gas could mimic pure ice, so that the exact proportions are unknown.<ref name="mcfadden2007"/>

Uranus and Neptune have very hazy atmospheric layers with small amounts of methane, giving them light aquamarine colors. Both have magnetic fields that are sharply inclined to their axes of rotation.

Unlike the other giant planets, Uranus has an extreme tilt that causes its seasons to be severely pronounced. The two planets also have other subtle but important differences. Uranus has more hydrogen and helium than Neptune despite being less massive overall. Neptune is therefore denser and has much more internal heat and a more active atmosphere. The [[Nice model]], in fact, suggests that Neptune formed closer to the [[Sun]] than Uranus did, and should therefore have more heavy elements.