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High-pressure physics

Ammonia and the ice giants

Determining the melting temperature and electrical conductivity of ammonia under the internal conditions of the ice giants Uranus and Neptune is helping us to understand the structure and magnetic field formation of these planets.

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Fig. 1: Ice giants, Uranus (left) and Neptune (right) photographed by Voyager 2.

NASA/JPL

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Correspondence to Kenji Ohta.

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The author declares no competing interests.

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Ohta, K. Ammonia and the ice giants. Nat. Phys. 19, 1227–1228 (2023). https://doi.org/10.1038/s41567-023-02081-9

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