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A blend of images to show the stars of the southern sky moving from east to west (left to right) over the peaks of the Continental Divide at Herbert Lake near Lake Louise, in Banff, Alberta, Canada. The main peak at left is Mount Temple. The star trails and Milky Way reflect in the calm waters of the small Lake Herbert this night on July 17, 2018. (KEYSTONE/SCIENCE PHOTO LIBRARY/Alan Dyer/VWPics/SCIENCE PHOTO LIBRARY)