Earth’s Crystallized Iron Inner Core Could Be Lopsided, Study Suggests – ScienceAlert

When seismic waves speed through the body of our planet, they appear to travel 3 percent faster when moving vertically from pole to pole, than horizontally from east to west.
New models suggest this is because Earth’s solid core is growing faster on one side, deep beneath Indonesia’s Banda Sea, and slower on the other side, underneath Brazil.
Once, there was a time when our planet didn’t have a solid core. The deepest interior of our planet probably held a mass of molten material for billions of…

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