A Matryoshka diamond, the first of its kind, was discovered in a diamond mine in Russia. An air pocket nestled inside the diamond contains an even tinier diamond that rattles when shook. Scientists ...

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Rain is usually made of water, but elsewhere in the Solar System the weather can be unimaginably different. Scientists from SLAC National Accelerator Laboratory believe that on two giant planets, ...

When it comes to knowing what actually lies deep inside the Earth, diamonds are a geologist’s best friend. The diamond bearing the telltale mineral inclusion came from a Botswana mine and formed at ...

Diamond stands up to a squeeze. Surprisingly, the material’s structure persists even when compressed to 2 trillion pascals, more than five times the pressure in Earth’s core, scientists report January ...