Charged particles from the sun (solar wind) colliding with gases....

[FinsnFur]

.... in Earth's upper atmosphere. "Thanks Google" 
Or also known as Northern Lights. They are really screamin tonight here.

[Hawks Feather]

Those images are really good - especially the last one! The weather guesser said that some in this area would be able to see the lights and a couple of pics have been posted, but nothing as good as the ones you have.

Your granddaughter is tougher than the girls around here - hat, sweatshirt, winter jacket, and SHORTS.

[Okanagan]

Great pics!  Northern lights are simply amazing.  Hard to believe your eyes.

Rain and clouds here at the NW corner of the country, though I thought I could see a trace of glow behind the clouds one time when I looked.

Man, that little girls is really growing up!  She is dressed like the girls in this cold wet area.  Looks normal, especially if she is wearing thick wool socks and sandals.