A solar explosion called a coronal mass ejection is poised to graze Earth on Friday or Saturday (Jan. 24 or Jan. 25), potentially triggering colorful auroras over the northern U.S.
The northern lights should continue well into the weekend and may even reach down into the middle parts of the US.
Related: 4 Planets Will Align in the Sky Every Night of January—Here's How to See the Display. According to NASA's Jet Propulsion Laboratory, the northern lights are created by ...