Aurora over Banff National Park, Canada
Night sky watcher Paul Zizka caught the aurora on July 9, 2012, at Lake Minnewanka, Banff National Park, Alberta, Canada.
Aurora Australis over Concordia Station
The ethereal green glow of Aurora Australis high over Concordia station on July 18, 2012. It was taken by ESA-sponsored scientist Alexander Kumar and his colleague Erick Bondoux from about 1 km from the station, located in the Antarctic at –75°S latitude.