The Blue Hour: Our favorite photos from the October Editors' Choice photo challenge

Editors' Choice Photo Challenge: The blue hour In our most recent Editors' Choice Photo Challenge, we asked you to show us the 'blue hour', a period shortly before sunrise or after sunset when the sun is below the horizon but still provides enough light to make the sky appear deep blue in photos. Once again, we were seriously impressed with some of the images you entered. This time around, we added an extra twist: all entries had to be shot after the day the challenge was announced, so all the p...