‘Innermost’: Earth has another layer in its core, scientists discover – USA TODAY

Hot spots in the earth’s core are responsible for the creation of the Hawaiian Islands.
Story Highlights

• While this new layer is difficult to observe, its existence may point to an unknown, dramatic event in Earth’s history.
• Investigating the structure of the inner core can help us understand more about Earth’s history and evolution.
• “It’s very exciting – and might mean we have to re-write the textbooks!”

Scientists have discovered yet another layer deep inside the core of the Earth, a new study suggests.
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