World ‘Pothole’ in space: Evolving dent in Earth’s magnetic field may impact satellites, spacecraft August 19, 2020August 19, 2020Wyatte Grantham-Philips, USA TODAYComments Off on ‘Pothole’ in space: Evolving dent in Earth’s magnetic field may impact satellites, spacecraft Over South America and the southern Atlantic Ocean, the South Atlantic Anomaly (SAA) is growing and splitting into two lobes.