Earth's Biggest Diamonds May Form in Strange 'Metal Pools'

The world's largest, most valuable diamonds may be born in pockets of liquid metal located deep within the Earth, a new study finds. This discovery suggests that pockets of liquid metal peppered throughout Earth's mantle layer, between the planet's crust and core, may play a key role in how carbon and other elements key to life cycle between the Earth's interior and the planet's surface, the researchers said.