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| Description: The Aurora borealis in Alaska. The gorgeous aurora seen here is mostly glowing green due to emission by oxygen atoms in our atmosphere. Some auroras remain stationary for hours, while others shimmer, like curtains blowing in the wind. Picture Stats: Views: 746 Filesize: 256.26kB Height: 900 Width: 1236 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=15979 |