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There's probably a fifth layer. (forplayday/iStock/Getty Images) NATURE Scientists Detect Signs of a Hidden Structure Inside Earth's Core TESSA KOUMOUNDOUROS4 MARCH 2021 While most of us take the ground beneath our feet for granted, written within its complex layers, like pages of a book, is Earth's history. Our history. Now researchers have found more evidence for a whole new chapter deep within Earth's past - Earth's inner core appears to have another even more inner core within it. "Traditionally we've been taught the Earth has four main layers: the crust, the mantle, the outer core and the inner core," explained...

"Would you be interested in a once-in-a-life-time chance to discover Our Hollow Earth first hand? We invite you to join us now on an expedition to Our Hollow Earth! This proposed expedition would like to conduct some scientific observations in the Arctic that is hoped will resolve once and for all whether the hollow earth theory has any validity. The indigenous Eskimos believe there is a hole in the Arctic Ocean. Observations of several Arctic explorers of mirages of land in the Arctic indicate that the most plausible location for a north polar opening that leads into the interior of...

The Hollow Earth Perhaps some of the most bizarre scientific theories ever considered were those concerning the possibility that the Earth was hollow. One of the earliest of these was proposed in 1692 by Edmund Halley. Edmund Halley was a brilliant English astronomer whose mathematical calculations pinpointed the return of the comet that bears his name. Halley was fascinated by the earth's magnetic field. He noticed the direction of the field varied slightly over time and the only way he could account for this was there existed not one, but several, magnetic fields. Halley came to believe that the Earth...