A vast and evolving anomaly in Earth’s magnetic field, situated above South America and the southern Atlantic Ocean, continues to attract focused attention from NASA researchers. This region, known as ...

This bizarre anomaly is sometimes described as a ‘dent’ or ‘pothole’ in Earth’s magnetic field, and it has been expecting and slightly shifting westward over the past few years.

NASA has been monitoring a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the skies above the planet, stretching out between South America and southwest ...