The weak spot, known as the South Atlantic Anomaly, was identified in the 19th century and expanded in recent years.

For the first time in 10 years, no hurricane has made landfall in the U.S. through the end of September. Here's why.

The South Atlantic Anomaly (SAA), a known region of Earth’s magnetic field weakness, has been under the observation of the European Space Agency’s Swarm mission for over a decade. New findings reveal that this weak region has expanded rapidly since 2014,

Jerry is the tenth storm in what has become a late-blooming Atlantic hurricane season, which has already produced three hurricanes in just over two weeks, US News, Times Now

Using 11 years of magnetic field measurements from the European Space Agency's Swarm satellite constellation, scientists have discovered that the weak region in Earth's magnetic field over the South Atlantic—known as the South Atlantic Anomaly—has expanded by an area nearly half the size of continental Europe since 2014.

Subtropical Storm Karen suddenly formed overnight in the northern Atlantic Ocean, becoming the 11th named storm of the 2025 hurricane season. It is forecast to continue northeast in hostile weather Friday morning. As a subtropical storm, Karen has characteristics of both tropical and extratropical cyclones.

A colossal brown ribbon of seaweed, the Great Atlantic Sargassum Belt, stretches across the Atlantic Ocean. This massive bloom is growing due to increased nutrients from land and changing ocean currents.

Tropical Storm Jerry formed over the central Atlantic Ocean Tuesday and is expected to strengthen into a hurricane this week.