aurora
Definitions
A natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, usually near the northern or southern magnetic poles.
A luminous phenomenon that consists of the radiance of the sky in the early morning; the dawn.
Examples
The vibrant colors of the aurora danced across the night sky in the Arctic.
We traveled to Iceland in hopes of witnessing the breathtaking beauty of the aurora borealis.