Aurora colors: What causes them and why do they vary?

Aurora colors: What causes them and why do they vary?

The colours of the polar aurora

The cause Causes of Color

Why there are Different Aurora Colours Explained by Aurora Nights

What causes the different shapes and colours of the aurora? - BBC Sky at Night Magazine

Aurora colors: What causes them and why do they vary?

What causes the Northern Lights? Aurora borealis explained

What causes the different shapes and colours of the aurora? - BBC Sky at Night Magazine

Aurora colors: What causes them and why do they vary?

Auroras: Why are they different colors?

What causes colour difference in auroras? - Quora