Tonight, the sun's restlessness reaches down into latitudes that rarely feel its magnetic breath, offering residents across twelve American states a rare chance to witness the aurora borealis — that ancient interplay of solar wind and planetary field that has stirred wonder in human beings for as long as we have looked upward. Elevated geomagnetic activity is pushing the northern lights southward beyond their usual Arctic domain, a reminder that even the familiar sky above us is connected to forces vast and indifferent to borders. For a few hours, the cosmos is closer than usual.