Scientists Uncover Vast Subterranean Ocean Beneath Earth's Crust
Scientists have discovered a massive reservoir of water hidden beneath the Earth's crust, three times larger than all the oceans on the surface. This water is contained within a blue rock called ringwoodite in the Earth's mantle, 400 miles underground. The discovery was made by measuring seismic waves generated by earthquakes, which revealed the presence of water-containing ringwoodite. This finding could help explain the origin of Earth's water and suggests a whole-Earth water cycle. Further research is needed to determine if this water reservoir wraps around the entire planet.