Add Yahoo as a preferred source to see more of our stories on Google. Scientists at NASA are closely monitoring a vast region of weakened magnetic intensity—known as the South Atlantic Anomaly ...

Far beneath the Atlantic, a vast distortion in Earth’s magnetic shield has been charted with a clarity that would have been unthinkable a decade ago. The South Atlantic Anomaly, a sprawling weak zone ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Researchers have described ...

Scientists at NASA are closely monitoring a vast region of weakened magnetic intensity—known as the South Atlantic Anomaly (SAA)—due to the unique challenges it poses for satellites. From South ...