What’s buried beneath Earth’s surface tells stories older than humanity itself. The seafloor holds clues to shifting continents, ancient ecosystems, and the dramatic dance of magnetic pole reversals. These flips, where north becomes south, are more than rare cosmic quirks—they’re signals of Earth’s inner workings. By digging into these mysteries, we can better understand the forces shaping our planet’s past, present, and future. Ready to dive in? Let’s explore what lies beneath.
Category: Magnetic Pole Reversals
Magnetic pole reversals happen when Earth’s north and south magnetic poles switch places. These flips don’t follow a set schedule; they can happen every few hundred thousand years. The last full switch took place about 780,000 years ago. During a reversal, the strength of Earth’s magnetic field drops, but the change doesn’t cause mass extinction or chaos. Scientists study ancient rocks to track past reversals and predict future ones. The magnetic field always recovers, keeping Earth protected from solar and cosmic radiation.