As I wrote a couple of days ago, the annual Geminid meteor shower peaked last night, raining down a magnificent display of shooting stars. Did you go out and watch? A lot of photographers did. One was John Chumack, an accomplished astrophotographer, who captured this amazing shot of three meteors: Chumack was in Yellow Springs, Ohio on the evening of the 12th (the day before the peak!) using a simple DSLR camera and a fisheye lens. This was a 25-second exposure, enough to see Orion, Jupiter (the bright “star” above Orion), Gemini—the direction from which the eponymous meteors appear to...