The northern lights are a natural light display in the sky, predominantly seen in high-latitude regions. They are caused by the collision of charged particles from the sun with the Earth's atmosphere. The best time to see the northern lights is during the winter months, when the nights are long and dark.
Aurora boreal en EEUU ¿será visible en Illinois? – Telemundo Chicago, aurora boreal
Northern lights could be seen in 30 US states Sunday. Here's where.
Northern lights in Norway Best places to see the aurora borealis
Northern lights again seen from rare southern locales; more to come - Los Angeles Times, aurora boreal
Best Places to See the Northern Lights Around the World
Northern Lights: These states in the U.S. will see the Northern Lights this week - The Economic Times, aurora boreal
Best Places to See the Northern Lights Around the World
Northern lights in Norway Best places to see the aurora borealis
Aurora boreal en EEUU ¿será visible en Illinois? – Telemundo Chicago, aurora boreal
Northern Lights in Iceland - When & Where To See the Aurora
Northern Lights: These states in the U.S. will see the Northern Lights this week - The Economic Times, aurora boreal