Nature curiosity: What are the northern lights?

The northern lights are always happening, but you have to be at the right place at the right time to view them.

Aurora Borealis – Seven Wonders

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Aurora Borealis Seven Natural Wonders

Northern lights in Sweden, here's where to see 'em

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What Are the Northern Lights?

Spirits in the sky: the stories and science behind the Northern Lights

Curious Kids: Why are the northern lights only spotted near the