G2 geomagnetic storm watch issued as CME heads for Earth — northern lights possible across northern US Oct. 8-9
The Sun unleashed a powerful flare early on October 6, launching a coronal mass ejection (CME) toward Earth, and could give a boost to the northern lights later this week. NOAA’s Space Weather Prediction Center (SWPC) has issued a moderate geomagnetic storm (G2) watch for October 9, when the CME is expected to reach Earth. … Read more