They aid in helping you to see things.
yes
There are no northern lights in Antarctica. However, the southern lights -- Aurora Australis -- are visible from the continent.
Neon lights.
they are mostly visible in the Northern Hemisphere, especially in Northern Canada, Norway and Russia
Your friend probably has auroraphobia. This is the official phobia of the Northern Lights.
radiation
The Photosphere
Fredericksberg
green, blue and red
No, appears in the North Pole.
Yes they are visible in Alaska.
Visible light includes all the colors of the rainbow. The different colors are the result of different wavelengths.