It takes that fresh mani feeling—you know, when your nails have been scrubbed, buffed, trimmed, and filed to perfection—and adds in some softening exfoliation. The result? A manicure that ...

From these tiny fragments we can glean tidbits of information about our planet's interior. A diamond unearthed in a diamond mine in Botswana is just such a stone. It's riddled with flaws containing ...