Home Science Scientists created a weird new type of super-dense ice

Scientists created a weird new type of super-dense ice

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Scientists created a weird new type of super-dense ice

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Part of the experimental setup for making medium-density amorphous ice. (Image credit: Alexander Rosu-Finsen, Christoph Salzmann)

Using ultracold temperatures and some steel ball bearings, scientists have created a brand-new, bizarre form of ice that has the same density as liquid water.

The ice, known as medium-density amorphous ice, fits into a gap in the annals of frozen water that scientists weren’t sure would ever be filled. Unlike the crystalline ice that forms naturally on Earth, the newly created ice doesn’t have an organized molecular structure. Instead, its molecules are in a chaotic mismatch, more like glass — a state known as amorphous. Other types of amorphous ice have been made before, but they’ve been either much less dense or far denser than liquid water. This new Goldilocks version of amorphous ice is right in the middle, almost exactly matching liquid water’s density, researchers explained in a new study published in the journal Science (opens in new tab) on Feb. 2.



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