It is common knowledge that the Earth has two cores, the inner core and the outer core, but researchers have recently stumbled upon the "secret" one called the "innermost inner core." 'Innermost Inner Core' of the Earth Discovered by Researchers(Photo : NASA (ADAPTED FROM GODDARD MEDIA STUDIOS).) Researchers from the Australian National University revealed via a news release that its researchers discovered a new development in the planet, with an "innermost inner core" that remained unknown for millennia. "The existence of an internal metallic ball within the inner core, the innermost inner core, was hypothesised about 20 years ago. Read Also: NASA Builds Small, Low-cost Weather Sensors to Track Tropical CyclonesWhat is the Innermost Inner Core's Purpose?
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