Aurora Borealis. (Not my pic)but Did indeed see this twice whilst in Alaska. Once in Denali National Park then again in Fairbanks. Was absolutely amazing to witness such a fabulous spectacular show of nature. The Denali NP sighting was similar to this pic however Fairbanks put on a show of it being more rainbow like. Both amazing sights.
Aurora Borealis similar to what we saw in Fairbanks, Alaska.