Cassiopeia and the northern stars over Red Rock Canyon in Waterton Lakes National Park, Alberta, with illumination from a waxing gibbous Moon. This is a composite of three 30-second exposures for the ground to smooth noise and one 30-second exposure for the sky, all with the 24mm lens at f/3.5 and Canon 6D at ISO 1600. (Photo by: Alan Dyer /VW PICS/UIG)