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Hot black ices

At high pressure and temperature, water forms two crystalline phases, known as hot ‘black’ ices due to their partial opaqueness. A detailed characterization of these phases may explain magnetic field formation in giant icy planets like Neptune.

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Fig. 1: Water under planetary interior conditions of Neptune as recreated in the laboratory.


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Correspondence to Simone Anzellini.

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Anzellini, S. Hot black ices. Nat. Phys. 17, 1195–1196 (2021).

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