Geomagnetic Storm Warning

Spaceweather News

Our planet entered a high speed solar wind stream on Saturday, May 12th, which triggered a moderate geomagnetic storm. Sky watchers, especially those at high latitudes, should be alert for glowing auroras tonight near local midnight.


The Sunspot That Wouldn't Die

Holographic images of the far side of the Sun reveal an old friend: active region 9393, the largest sunspot of the current solar cycle and the source of the most powerful x-ray solar flare ever recorded. The giant spot, which is probably now just a shadow of its former self, has already transited the Earth-facing side of the Sun twice. If AR9393 persists for another week it will emerge into direct view for a rare third transit.