<p id="docs-internal-guid-7161fe74-aebc-9be1-fbc2-76fcc3cefbba" dir="ltr"><strong>The famed northern lights shine across the shores of Pontoon Lake in Canada's Northwest Territories in an image released September 23.</strong></p><p dir="ltr">Green is the most common color of this natural phenomenon that has dazzled sky-watchers for millennia. (See <a href="http://news.nationalgeographic.com/news/2013/03/pictures/130326-best-aurora-pictures-2013-space/">more aurora pictures</a>.)</p><p dir="ltr"><em>—Photo Gallery by Nicole Werbeck, Text by Linda Qiu</em></p>

An Elusive Green Light

The famed northern lights shine across the shores of Pontoon Lake in Canada's Northwest Territories in an image released September 23.

Green is the most common color of this natural phenomenon that has dazzled sky-watchers for millennia. (See more aurora pictures.)

—Photo Gallery by Nicole Werbeck, Text by Linda Qiu

Photograph by Yuichi Takasaka, TWAN

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