Modeling Earth's Magnetism - NASA Science

Earth’s magnetic field is a powerful shield that protects our planet from the solar wind — streams of charged particles constantly flowing from the Sun. 🧲🌍 Most of this material gets deflected by the magnetosphere, but some becomes trapped in the Van Allen radiation belts, while others are guided toward the poles. When these particles collide with atmospheric gases, they create the glowing curtains of light we call auroras. Without this protective shield, Earth’s atmosphere would gradually ero

Earth’s magnetic field broke down 42,000 years ago and caused massive sudden climate change

Earth's Magnetosphere - NASA Science