Does the metal in the solid core of a rocky planet have any special properties?
https://www.reddit.com/r/askscience/comments/11zbuiw/does_the_metal_in_the_solid_core_of_a_rocky/
Earth moves far under our feet: Study shows Earth’s inner core oscillates
https://news.usc.edu/200185/earth-core-oscillates/
Earth’s inner core has slowed so much it’s moving backward, scientists confirm. Here’s what it could mean | CNN
https://www.cnn.com/2024/07/05/science/earth-inner-core-rotation-slowdown-cycle-scn/index.html
Earth’s inner core may be reversing its rotation
https://www.sciencenews.org/article/earth-inner-core-reverse-rotation
The Age of the Earth’s Inner Core Revised | Jackson School of Geosciences | The University of Texas at Austin
https://www.jsg.utexas.edu/news/2020/08/the-age-of-the-earths-inner-core-revised/
The Core of The Earth Documentary (2017) - YouTube
https://www.youtube.com/watch?v=8GSpiDvZTho
The Earth’s core as a reservoir of water | Nature Geoscience
https://www.nature.com/articles/s41561-020-0578-1