Our beliefs are changing through time, because some of them had been chosen based on our world view and what can fit with our previous background rather than what can represent nature itself. However, one of those beliefs is about earth’s inner core structure and iron crystals orenintation. Geoscientists used to represent the inner core as a cylindrical symmetry that aligned towards the poles (north-south). In fact, they had no evidence for that except that it fit their general model for the earth interior.

Recently, a group of scientists studied carefullay the seismic waves that penetrate the inner core and tried to discover the iron crystal orientation. The results were astonished when they found two orientations within the inner core. The inner part of the inner core shows iron crystal alinement toward the equator while the outer part of the inner core is almost perpendicular in which it shows north-south alinement. What can such finding tell us about Earth? In fact, that would improves our understanding about how our planet from in one hand, and give an important insight about inner core dynamics in the other hand.

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