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'Ice Giant' Planets Uranus and Neptune Might Not Be Full of Ice After All

Summary by Mashable
Uranus and Neptune might be more rocky than icy, new research shows, requiring scientists to rebrand the "ice giant" planets.

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A new study suggests that, as with Pluto, the two worlds could be formed mostly by rocks, and not by ice.

·Spain
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Uranus and Neptune, the two planets furthest from the Sun, would be mistakenly regarded as giants of ice. A model developed by the University of Zurich (UZH) and the PlanetS Center in Bern, shows that the two celestial objects could contain a large rocky heart.

The two outer planets of the solar system are generally considered to be ice giants, but we know little about their interior. This underlines a new study.

·Germany
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Large, distant, and icy—that's how we know the planets Uranus and Neptune, but they might be a bit different than previously thought. According to new Swiss research, they might be less icy and more rocky. The planets in our solar system can be roughly divided into three categories: the rocky planets Mercury, Venus, Earth […] Want more science? Read the latest articles on Scientias.nl .

·Middelharnis, Netherlands
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abc broke the news in Spain on Wednesday, December 10, 2025.
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