Where You Can See The Northern Lights In U.S. This Week
The colorful cosmic light display is caused by a geomagnetic storm. According to the Space Weather Prediction Center (SWPC) of the National Oceanic and Atmospheric Administration, a geomagnetic storm is “a major disturbance of Earth’s magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. “The largest storms that result from these conditions are associated with solar coronal mass ejections (CMEs) where a billion tons or so of plasma from the sun, with its embedded magnetic field, arrives at Earth,” the SWPC explains....