South Georgia sits within an area where this shield is weaker due to the weaker spot in the earth's magnetic field known as the 'South Atlantic Anomaly' (SAA). In this area, radiation from space ...

A vast and evolving anomaly in Earth’s magnetic field ... As a result, Earth’s magnetic shielding is compromised in this zone, creating a kind of “pothole” in the planet’s magnetic ...

The magnetic field acts as a shield against solar radiation, but in this area, solar particles are able to penetrate closer to the Earth's surface. The U.S. space agency has noted that certain ...

The absence of a strong atmosphere over Mars is also attributed to the lack of a magnetic field to shield its environment. As per NASA, the South Atlantic Anomaly arises from two main features ...