The South Atlantic Anomaly is rapidly expanding, threatening Earths magnetic field stability, which could have far-reaching effects on satellites and cosmic ray exposure.
- Since 2014, the South Atlantic Anomaly has grown by nearly twice the size of Texas, expanding up to 25 percent and shifting 14 miles westward each year.
- The South Atlantic Anomaly is linked to turbulent flows of molten iron in Earths outer core, raising concerns about the integrity of Earths magnetic field.
- The European Space Agency has reported that the expanding South Atlantic Anomaly may increase exposure to cosmic ray radiation for satellites operating in that region.
Why It Matters
This expansion of the South Atlantic Anomaly indicates potential vulnerabilities in Earths magnetic field, which could impact satellite functionality and increase radiation risks for both technology and human health.