The northern lights could dazzle millions of Americans in some northern states this weekend. An eruption of solar material from the sun earlier this week could lead to a show of the aurora borealis if the weather conditions are right,

And not to mention the Northern Lights. If you missed the spectacular display in May or the other solar storms over the summer, there might be another chance to witness this magnificent geomagnetic storm tonight in parts of Ohio.

Here are the factors you should consider if you're hoping for the chance to see the northern lights this weekend.

The northern lights may be visible in Western Pennsylvania on Friday. First Alert Meteorologist Ray Petelin says it's possible but not guaranteed. The Pittsburgh area typically needs to be close to an 8 on the K-index,

A spectacular display of the northern lights, also known as the aurora borealis, is expected to be visible across large parts of the northern U.S. this weekend. This comes after the Sun unleashed one of the most powerful solar flares in recent years,

The sun is sending a slew of activity to Earth this week — and that could mean strong displays of the aurora, also known as the northern and southern lights. For prime northern lights viewing in the United States,