Our Earth May Have A Mysterious Fifth Layer
The Blue Marble image of Earth captured by the Apollo 17 mission (Credit: NASA/Apollo 17 crew/Public Domain/commons.wikimedia.org) Geologists have long maintained that our Earth comprises four layers — the crust, the mantle, the outer core, and, the deepest layer, the inner core. However, a team of scientists led by Jo Stephenson, a doctoral student in seismology at Australian National University in Canberra, now asserts that our planet may be harboring a mysterious, fifth layer — an "inner-inner" core as well. "We found evidence that may indicate a change in the structure of iron, whi...
Source: dogonews.com