Geomagnetic fields

Earth’s magnetosphere cracked under pressure
Dec 7, 2016

That coronal mass ejection was just too intense. 

One of the most powerful X-Class solar flares ever is headed toward Earth
Sep 11, 2014

While pointed right at the Earth, a massive X1.6-class solar flare erupted Wednesday and blasted electrically charged particles right toward our little corner of the solar system.