CME SPARKS STRONG GEOMAGNETIC STORM: A coronal mass ejection (CME) hit Earth's magnetic field on May 12th, sparking the strongest geomagnetic storm of young Solar Cycle 25. Auroras would have been widely seen across Europe and in many US states,except for the fact that the storm occurred mostly during daylight hours. A high-latitude afterglow might still be visible tonight. Full story and updates @ Spaceweather.com.
Space Weather Alerts: Subscribers to our Space Weather Alert System received instant text messages when the CME arrived and when the storm began. Sign up and never miss another geomagnetic storm!
Above: Auroras in morning twilight on May 12, 2021. Photo Credit: John David McKinnon of Alberta, Canada.
