India, March 30 -- NASA scientists are concerned about a strange anomaly in Earth's magnetic field, which can make life at the International Space Station difficult. The vast and evolving phenomenon is called the South Atlantic Anomaly (SAA). It is situated above South America and the southern Atlantic Ocean, spanning from Chile to Zimbabwe. This region is marked by significantly low magnetic intensity and has intrigued scientists for years.

The SAA has been described as a 'dent' or 'pothole' in Earth's magnetic field by NASA. The agency said that it 'can cause big headaches for satellites'. It generally doesn't affect life on the planet but can impact the movement of spacecraft, satellites, and even the ISS.

Earth's magnetic field is m...