Researchers have synthesized millimetre-scale hexagonal diamond, a crystal structure so elusive that many physicists doubted it could ever be produced in bulk. The material, also called lonsdaleite, ...

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New research indicates that a rare form of diamond may originate in the burbling cores of distant worlds, arriving on Earth thanks to violent cosmic collisions. According to a team of scientists in ...

The long-lived international Cassini mission has revealed a surprising feature emerging at Saturn's northern pole as it nears summertime: a warming, high-altitude vortex with a hexagonal shape, akin ...

Sitting atop Saturn’s north pole is one of the Solar System’s most striking weather patterns: a rotating, color-changing hexagon slightly wider than Earth. A new study shows there’s another hexagon ...