Your ice cube has exotic relatives.

Here's the strange part.

The ice in your drink has a surprisingly complicated extended family. Pressure, temperature and atomic ordering let water form different crystal structures. Researchers used neutron diffraction to work out ice XIX, a high-pressure form with a particular arrangement of hydrogen atoms. Same water molecules, different organisation. Your freezer is not secretly running the whole collection. (University of Innsbruck)

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Curious about the methods, dates or details? Open the original source and keep the caveat in view.