2007 41¢ Aurora Borealis
Issue Date: October 1, 2007
City: Washington, DC
Printed By: Ashton-Potter (USA) Ltd
Printing Method: Lithographed
Perforations: Serpentine die cut 10 ¾
The spectacular colored lights of the aurora borealis can be seen in an oval area centered around the North Pole. The lights are the result of a collision between solar wind-driven charged particles and atoms of gases in the Earth's protective atmosphere.