Water's Hidden Depths: Unraveling the Mystery of Earth's Stashed H2O For decades, scientists have been trying to understand where Earth's water came from.
Billions of years after its formation, researchers have made progress in tracing the planet's H2O history. A new study suggests that our very mantle might be hiding an enormous secret stash of water.
To grasp this finding, one must first appreciate the extreme environment within Earth's interior.