Aurora Matt Melnyk Image taken: Apr. 1, 2012 Location: Edmonton, Alberta, Canada Details: Amazing Aurora display that only lasted 15 min. Green and purple filled the sky just east of Edmonton Alberta at Elk Island National Park. Shot using Canon 5d MkII, 16-35mm, ISO 1600, F 2.8, 8s exposure. ©2013, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.