11:55 AM | Incoming CMEs from AR1515


There is currently a large group of sunspots, known officially as AR1515, that is facing the Earth and there were four different coronal mass ejections (CMEs) associated with this active region on the 4th of July. NOAA forecast models indicate that the CMEs should reach the Earth’s upper atmosphere sometime tomorrow night and this could set off some northern light displays across the northern US. This group of sunspots is quite huge, stretching more than 100,000 km (8 Earth diameters) from end-to-end. There is even the threat for a more significant eruption over the next 12-24 hours - we’ll continue to monitor the situation.