Scientists have found a new structure inside the earth’s core.
The new structure is made of dense, hot rock—deep inside the Earth below the Pacific Ocean.
The structure is known as an ultralow-velocity zone (ULVZ).
It is located on the boundary between Earth’s superheated, molten core and the solid mantle.
The international team from the University of Maryland and Johns Hopkins University found the new structure.
They were able to detect the structures by analyzing data on seismic waves, which can reveal hidden structures as they travel through the planet.