When the Sky Went Neon: How Earth’s Magnetic Shield Faltered 41,000 Years Ago — And Early Humans Adapted to Survive
About 41,000 years ago, our planet faced a dramatic cosmic moment: a major geomagnetic disturbance known as the Laschamps Excursion (sometimes “Laschamps event”). During this short but powerful shift, the Earth’s protective magnetic field plunged to as low as 5–10 % of its normal strength, allowing auroras to blaze far from the poles and exposing… Read More »