Active sunspot AR3777 fired off the strongest of its three solar flares this week, sending another CME to impact Earth this weekend with a possible geomagnetic storm.
Sun unleashes X-class solar flare, blasts 3rd coronal mass ejection toward Earth in a week (video) : Read more
Sun unleashes X-class solar flare, blasts 3rd coronal mass ejection toward Earth in a week (video) : Read more