An apparently ghostly aurora recorded over northern Canada back in 2013. To wit:

Regardless of fantastical pareidolic interpretations, the pictured aurora had a typical green colour and was surely caused by the scientifically commonplace action of high energy particles from space interacting with oxygen in Earth’s upper atmosphere. In the image foreground, at the bottom, is a frozen Alexandra Falls, while evergreen trees cross the middle.

(Image: Yuichi Takasaka, TWAN)

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