NASA has been observing an unusual anomaly in Earth’s magnetic field: a vast region of reduced magnetic intensity stretching between South America and southwestern Africa. Known as the South Atlantic Anomaly (SAA), this immense and evolving phenomenon has captivated scientists … Read More
An ancient Agathis australis tree with rings that document the near-reversal of Earth’s magnetic field has been discovered on New Zealand’s north island. The tree, which measures 8 feet in diameter and 65 feet in length, was found buried under … Read More
Earth’s interior is a far from quiet place. Deep below our surface activities, the planet rumbles with activity, from plate tectonics to convection currents that circulate through the hot magmatic fluids far underneath the crust. Understanding the origin of the … Read More
About 41,000 years ago, something remarkable happened: Earth’s magnetic field flipped and, for a temporary period, magnetic north was south and magnetic south was north. Palaeomagnetists refer to this as a geomagnetic excursion. This event, which is different to a complete … Read More
Earth’s magnetic north pole, which has been wandering faster than expected in recent years, has now crossed the prime meridian. The team of researchers that maintain the World Magnetic Model (WMM) has updated it and released it a year ahead … Read More
Yes, Earth’s Magnetic Poles Shifts. Regularly. Actually the magnetic poles have switched places many times over the history of the Planet. Within the last 20 million years, the Earth follows a rhythm of that reversal, where in every 200,000 to … Read More