NASA is watching a vast, growing anomaly in Earth's magnetic field

NASA is closely monitoring the South Atlantic Anomaly (SAA), a significant area of weakened magnetic intensity located between South America and southwest Africa. This anomaly poses risks to satellites and the International Space Station, which may malfunction due to increased exposure to charged solar particles.

The SAA resembles a 'dent' in Earth's magnetic field and has been observed to potentially split into two distinct regions. Scientists believe its origins are linked to geological structures below the Earth's surface and that it may have existed for millions of years.