Aurora Facts
Aurora is the Roman god of the dawn; Boreas is the Greek name for the north wind.
The northern lights are only visible when it's dark, but they can occur at any time.
The northern lights are initially caused by the sun. ...
The northern lights occur around 100km above the earth
The patterns and shapes of auroras are determined by the changing flow of charged particles and the varying magnetic fields.
Auroras are more likely to occur close to the equinoxes, in late March and late September, but displays can occur at any time of year.