The South Atlantic Anomaly May Go Back Far Longer Than Anybody Knew

For years, scientists have been gripped by the existence of a strange anomaly weakening Earth’s magnetic field. It’s located in the midst of the South Atlantic ocean, extending all the way from South America to the west coast of southern Africa. This giant, puzzling expanse of reduced magnetic intensity – which in recent times looks […]

from Newslanes https://ift.tt/2WKwnqB