We’re used to volcanoes spewing up magma and ash, but sometimes they’ll gush forth diamonds. And sometimes, those diamonds carry with them strange forms of matter from the deepest bowels of the earth, ...

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Trapped in the rigid structure of diamonds formed deep in the Earth’s crust, scientists have discovered a form of water ice that was not previously known to occur naturally on our planet. The finding, ...

Diamonds, the super-strong and brilliant crystals of carbon atoms produced under the Earth’s crushing pressures, are typically valued for their beauty and durability. But scientists also value them ...

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See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Pockets of water may lie as deep as 500 miles into the Earth's mantle, ...

A group of researchers led by Oliver Tschauner, a professor of geoscience from the University of Nevada, have discovered a form of super-dense ice known as ice-VII on Earth for the first time. Though ...