The Northern Lights, also known as the Aurora Borealis, lit up the sky over parts of the U.S. They are a phenomenon caused by plasma ejected from the sun during a solar storm, which interacts with Earth’s geomagnetic field. | NBC News

Woah! An incredible timelapse video by a passenger on a flight across the eastern U.S. captured a breathtaking view of the northern lights as a powerful geomagnetic storm made the aurora borealis visible in much of the country. | ABC7