Check out courses in science, computer science, or mathematics on Brilliant! First 30 days are free and 20% off the annual premium subscription when you use our link ➜ https://brilliant.org/sabine. Earth's magnetic field has a hole located over the South Atlantic Ocean. It’s called the South Atlantic Anomaly and according to NASA and the ESA, it’s changing. Could this be a sign that the Earth’s magnetic field is about to flip? I’ve had a look. Paper: https://agupubs.onlinelibrary.wiley.com/doi/