Using night mode on your phone can help capture photos of the northern lights. Here's how to turn it on.

PITTSBURGH, Pa. (KDKA) -- The northern lights are expected to be visible again throughout parts of the United States on Friday night. 

When the northern lights, or the aurora borealis, are visible, the best way to see them is to find a dark spot away from bright lights, allow time to enable your eyes adjust to the darkness and look toward the north.  

The northern lights show up best in photos.