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LiveScience
LiveScience
Patrick Pester

World's biggest X-ray laser discovers never-before-seen type of ice that's solid at room temperature

A photograph of the High Energy Density (HED) instrument of the European XFEL. .

Scientists have squeezed water between two diamonds to create an entirely new form of ice that's solid at room temperature.

The ice, named ice XXI, forms when water is subjected to extreme pressure to become metastable — a precarious state that is made physically unstable by the slightest disturbance.

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