Metal Print

The Aurora Borealis is active all year but can only be seen when the Alaska night sky is dark from August to April.  The Aurora is a natural light display caused by charged particles from the Sun interacting with the Earth’s Atmosphere.  When these particles collide with Oxygen, yellow and green are produced; Nitrogen produces red, violet and rarely blue. The colors are also affected by altitude - green/red around 150 miles; purple/violet at 60 miles.