We already know that one long exposure photo can be incredible. But what if you stack multiple long exposures, combining their perspectives in Photoshop? You cover more time, you can see more light. And the effect is remarkable.
Remember this amazing photo from the ISS? It was actually a series of 30-second exposures, glued together as one. And for this week's Shooting Challenge, I can't get you into space, but I can teach you the technique.