The Shifting Poles: How Magnetic Fossils Reveal Earth’s Hidden Flips
Every so often, Earth’s magnetic field wobbles, falters, and – on rare occasions – flips. We don’t feel it in our bones, but rocks, sediments, and even ancient microbes quietly record the drama. In the last decade, scientists have learned to read those records at astonishingly fine scales, uncovering episodes of chaos that standard measurements ...
