Stunning Northern Lights Captured Across Multiple US States.

People in several US states were treated to a rare display of the Northern Lights, or aurora borealis, on Thursday night and Friday morning. The phenomenon was visible in Washington state, Montana, Wyoming, Minnesota, Wisconsin, South Dakota, North Dakota, and New York. The aurora was caused by a blast of solar energy that triggered geomagnetic storms, which in turn brought the aurora. The colorful aurora forms when particles flowing from the sun get caught up in Earth's magnetic field and interact with molecules of atmospheric gases.