Scientists discover Earth's inner core may be changing shape, challenging previous notions of its solidity.
Scientists have found that Earth's inner core, once believed to be a solid, unchanging sphere, may actually be changing shape. By analyzing seismic waves from earthquakes, researchers discovered evidence that the inner core's outer boundary has shifted over the past few decades. This suggests that the inner core might be less solid than previously thought, potentially rotating at a different pace than the rest of the planet. The changes could be due to interactions with the liquid outer core, and could provide insights into Earth's magnetic field and thermal behavior.
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