Ice giant
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An ice giant is a giant planet composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Nept
These cutaways illustrate interior models of the giant planets. The planetary cores of gas giants Jupiter and Saturn are overlaid by a deep layer of metallic hydrogen, whereas the mantles of the ice giants Uranus and Neptune are composed of heavier elements.
PDS 70
Uranus
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Uranus is the seventh planet from the Sun. It is a gaseous cyan-coloured ice giant. Most of the planet is made of water, ammonia, and methane in a supercritical phase of matter, which astronomy calls
Ice giant
…composed mainly of elements heavier than hydrogen and helium, such as oxygen, carbon, nitrogen, and sulfur. There are two ice giants in the Solar System: Uranus and Neptune. In astrophysics and planetary science, the term "ice" refers to volatile chemical compounds with freezing points above about 100 K, such…
William Herschel, discoverer of Uranus
Johann Elert Bode, the astronomer who suggested the name Uranus
Uranus seen through an amateur telescope, shortly after lunar occultation, during the November 2022 lunar eclipse
Size comparison of Earth and Uranus