Mar 15
Beyond Diamond: How Scientists Forged the Hardest Space Rock on Earth
For generations we have grown up believing a simple undisputed rule about the physical world which states that nothing on Earth is harder than a diamond. This glittering clear crystal forged deep in the mantle of our planet has dominated the top of the hardness scale for decades. We use it to cut through solid rock and we put it on drill bits to bore deep into the crust of the Earth. But quietly…