the Northern Lights bands of coloured light that are seen in the night sky in the most northern parts of the world = aurora borealis
Northern Lights are caused by charged particles interacting with the Earth's magnetic field Stimulated by the magnetic field lines the particles emit their "extra" energy in the form of light The color of Northern Lights depends on the kind of stimulated particle Northern Lights are more common near the poles, because the magnetic field lines become more concentrated near the North and South Pole Also, Northern Lights are more prominent during high solar activity
colorful display of natural lights that can sometimes be seen at nighttime in northern regions, aurora borealis
aurora borealis A magnificent display of colors in the night sky Some describe as curtains, streaks ribbons, or clouds