existence

Researchers from the ANU (Australian National University) say they managed to discover that the Earth has another core inside, the deepest so far known. It would be"solid metal ball" which would be inside the inner core. In this way, the Earth would have five terrestrial layers; Until now only the crust, mantle, outer core, and inner core. This fifth layer would be in the center of the inner core, the agency reported. Europe Press. The research data came from seismic waves caused by earthquakes. "The existence of an inner metallic ball within the inner core, the innermost core, was posited…