The Sun has been acting up; a certain sunspot has been producing powerful flares. In the past three days, several have reached or almost reached X-class, and one today was an X4.5 flare. (The letter is a measure of energy released by the flare; an X1 flare is ten times more powerful than an M1 class flare, and an X4.5 flare is almost three times more powerful than an X1 flare.)
With so much solar activity, it’s possible (though certainly not guaranteed) that one or more coronal mass ejections might strike Earth over the next 48 hours and might generate northern and southern lights (“auroras”). If you’re in a good location and the weather is favorable, you might want to check every now and then to see if the atmosphere is shining at you.
