Strong X-Class Solar Flare Heralds Geomagnetic Storm | Video
Monday, March 5, 2012 - 19:00
in Astronomy & Space
A potent X1 class flare, blasting a dazzling coronal mass ejection, left the Sun early on March 5th 2012 caused by sunspot cluster 4X the size of Earth. An earlier M2 class flare also produced a CME that may cause a geomagnetic storm.