What Is the Aurora Borealis? A Plain-Language Guide to the Northern Lights
It's one in the morning on a ridgeline north of Fairbanks. Twenty below. The sky is black in every direction because there are no town lights to the north. A pale green smudge shows up just above the horizon, the kind of thing you'd write off as a cloud. Then it brightens. Then it starts to move. That's the aurora, and it's why […]