The world's biggest light show
The flickering lights over our northern- and southern-most skies at times seem like a mystical offering. Good ole northern lights (aurora borealis) and southern lights (aurora australis) — visible 65 to 72 degrees north and south latitudes respectively — are actually just natural light shows that exist in our ionosphere.
Scientists say auroras are created when a [skipwords]solar[/skipwords] wind of charged particles from the sun crashes into the Earth's upper atmosphere over the polar regions. As a result, auroras are generally spotted closer to the north or south poles. You can see them here. (Text: Katherine Butler)