Fireflies Captured with Long Exposure
When I was 21 I was in Virginia with my best friend. There were fireflies all over and she spent about a roll of film trying to take a photo (bear in mind we didn't have digital back then). Needless to say, when we got the roll developed, all we had was 34 photos of undergrowth. Obviously long exposure is the way to go. These are by the far more talented Tsuneaki Hiramatsu.
Via Wired