Deep within Earth’s mantle lie two enormous regions, often referred to as "islands," which are the size of continents.

Drifting inside the Earth without a spacesuit would be like stepping into the vacuum of space. Trust me, you don’t want to experience that. And next time you feel empty inside – remember that the ...

For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so vast and unusual that they defy conventional models of planetary evolution.

Add Yahoo as a preferred source to see more of our stories on Google. New experiments show Earth’s lower mantle trapped far more early water than thought, reshaping views of habitability. (CREDIT: ...

Earth’s deep interior still shapes the world above your feet. Water trapped far below the surface helps control how rocks move, melt, and recycle through the mantle. Some of that water carries a ...