Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...

NASA is tracking the South Atlantic Anomaly (SAA), an unusual phenomenon in Earth's magnetic field. This region, characterized by a weakened magnetic field, has drawn scientists' interest and concern.

A magnetic observatory is being re-established on South Georgia to provide vital data on the 'South Atlantic Anomaly' as scientists monitor a possible reversal of the earth's magnetic field.