Why is this aurora strikingly pink? When photographing Crater Lake in Oregon, the background sky lit up with auroras of unusual colors. Although much is known about them, accurately predicting the occurrence and colors of auroras remains a topic of investigation.

Why is this aurora strikingly pink? When photographing Crater Lake in Oregon, the background sky lit up with auroras of unusual colors. Although much is known about them, accurately predicting the occurrence and colors of auroras remains a topic of investigation.