"Massive Ocean Discovered 700km Below Earth's Crust Holds More Water Than All Surface Oceans Combined"

Researchers from Northwestern University have discovered a massive reservoir of water 700 km beneath the Earth's surface, hidden within a blue rock called ringwoodite in the mantle. This subterranean ocean contains more water than all the planet's surface oceans combined and may provide insight into the origins of Earth's water. The findings, made in 2014, have resurfaced on social media, shedding light on the Earth's hidden water reserves and the possibility that oceans may have gradually oozed out of the planet's interior.