- 25 Interesting Facts About Northern Lights You Should Know before you see them. - Auroras tend to be more frequent and spectacular during high solar sunspot activity, which cycles over approximately eleven years. The last climax was in
Dalton Highway — Alaska Public lands offer great opportunities to gaze upward at sights such as the Aurora Borealis, also called the Northern Lights. Aurora frequencies are vastly increased whenever there is high sunspot activity.