Related topics Aurora BorealisNorthern lightssolar flaregeomagnetic stormSpace WeatherSolar Activity Advertisement A geomagnetic storm caused by a massive x-class solar flare and resultant coronal mass ejection (CME) on Thursday continued to buffet the Earth's magnetic field today, producing spectacular aurora views all over the world, including much of the United States. At first, the impact of the CME was relatively weak and slow to get started, but it ramped up late last night and conditions have become stormy as the planetary index (Kp) reached as high as a 6. As a result, the Northern Lights have appeared as far south as California. Other areas reporting aurora sightings, including...
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