A minor-to-moderate geomagnetic storm is expected Saturday night, the National Oceanic and Atmospheric Administration said.

Mother Nature is giving us a breathtaking display of affection this Valentine’s Day. The gift comes in the form of the aurora borealis, commonly known as the northern lights. As couples exchange cards and chocolates,

More states in the northern U.S. will have a chance of seeing aurora borealis on Friday, as high-speed winds from a spot on the sun’s surface may affect the Earth’s magnetic field, according to the National Oceanic and Atmospheric Administration.