What a lot of stupid comments about what could be an interesting new scientific phenomenonl Could this have anything to do with recent solar flares or the very large sunspot currently moving to face the earth?
I agree, and such topics are not just in a topic like this, suggesting a concerted effort by (possibly paid) trolls to destroy FR.
Anyway, this phenom will probably remain unexplained for a good while.
[snip] STEVE appears much lower in the sky, in a region called the subauroral zone. That likely means solar particles aren't directly responsible for STEVE, Live Science previously reported. However, STEVE almost always appears during solar storms like Sunday's, showing up after the northern lights have already begun to fade. [/snip]